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Recent Digital Communications and Networks Articles

Recently published articles from Digital Communications and Networks.

A time-aware searchable encryption scheme for EHRs

Available online 14 September 2018
Yousheng Zhou | Xiaofeng Zhao | Siling Liu | Xingwang Long | Wenjun Luo

Despite the benefits of EHRs (Electronic Health Records), there is a growing concern regarding privacy exposure risks associated with the use of these technologies. A time-aware searchable encryption...

S-transform based integrated approach for spectrum estimation, storage, and sensing in cognitive radio

Available online 13 September 2018
Pyari Mohan Pradhan | Ganapati Panda

Cognitive radio (CR) uses the principle of dynamic spectrum allocation for improving the utilization of spectrum bands. Missing data estimation is essential for maintaining an uninterrupted quality...

Secrecy sum rate analysis of massive MIMO systems under dual-threat attacks using normalization methods

Available online 12 September 2018
Kishan Neupane | Rami J. Haddad

Massive multiple input multiple output (MIMO) system has been considered as an emerging technology to enhance the spectral efficiency and energy efficiency for upcoming wireless communication systems....

A data reduction scheme for active authentication of legitimate smartphone owner using informative apps ranking

Available online 12 September 2018
Abdulaziz Alzubaidi | Swarup Roy | Jugal Kalita

Smartphones are vulnerable to fraudulent use despite being strong authentication mechanisms. Active authentication based on behavioral biometrics is an alternative to protect the privacy of data in...

Middleware technologies for cloud of things: a survey

August 2018
Amirhossein Farahzadi | Pooyan Shams | Javad Rezazadeh | Reza Farahbakhsh

The next wave of communication and applications will rely on new services provided by the Internet of Things which is becoming an important aspect in human and machines future. IoT services are a key...

A new protocol for concurrently allocating licensed spectrum to underlay cognitive users

August 2018
Sabyasachi Chatterjee | Prabir Banerjee | Mita Nasipuri

Cognitive radio technology makes efficient use of the valuable radio frequency spectrum in a non-interfering manner to solve the problem of spectrum scarcity. This paper aims to design a scheme for...

Windowed overlapped frequency domain block filtering approach for direct sequence signal acquisition

August 2018
Ebrahim Karami | Harri Saarnisaari

This study applies a windowed frequency domain overlapped block filtering approach to acquire direct sequence signals. As a novel viewpoint, the windows not only allow pulse shaping without front-end...

Power consumption model of sector breathing based congestion control in mobile network

August 2018
Anwesha Mukherjee | Debashis De | Priti Deb

According to Cooper's law, the number of conversations per location doubles every two and a half years. Therefore, congestion control has become a promising research area. Nowadays small cell deployment...

A blockchain future for internet of things security: a position paper

August 2018
Mandrita Banerjee | Junghee Lee | Kim-Kwang Raymond Choo

Internet of Things (IoT) devices are increasingly being found in civilian and military contexts, ranging from smart cities and smart grids to Internet-of-Medical-Things, Internet-of-Vehicles, Internet-of-Military-Things,...

A routing protocol for urban vehicular ad hoc networks to support non-safety applications

August 2018
S.K. Bhoi | P.M. Khilar | M. Singh | R.R. Sahoo | R.R. Swain

The Urban Vehicular Ad Hoc Network (UVANET) provides non-safety applications like media sharing, internet service, file transfer, gaming, and so on. Routing plays an important role in providing better...

Machine learning for internet of things data analysis: a survey

August 2018
Mohammad Saeid Mahdavinejad | Mohammadreza Rezvan | Mohammadamin Barekatain | Peyman Adibi | Payam Barnaghi | Amit P. Sheth

Rapid developments in hardware, software, and communication technologies have facilitated the emergence of Internet-connected sensory devices that provide observations and data measurements from the...

Analytical model of IoT CoAP traffic

Available online 11 July 2018
Rolando Herrero

The Constrained Application Protocol (CoAP) is a mechanism that enables efficient transmission of information in the context of Wireless Sensor Networks (WSNs) characteristic of the Internet of Things...

Design of multi-antenna relaying for OFDM in impulsive noise environment

Available online 23 June 2018
Ahmed El-Mahdy | MennaTullah Seraj-Eldin

A low-complexity multi-antenna relaying scheme is proposed for Orthogonal Frequency Division Multiplexing (OFDM) in the presence of Class-A Impulsive Noise (IN). One way and two way relaying are considered....

Quality-of-service support in LTE-A systems with the DRX mechanism

Available online 24 April 2018
Cheng-Jie Tsai | Tsern-Huei Lee

Long-Term Evolution-Advanced (LTE-A) is a standard adopted for fourth-generation mobile communication systems. To support various mobile applications, the Third-Generation Partnership Project (3GPP)...

Piecewise linear detection for direct superposition modulation

April 2018
Martin Damrath | Peter Adam Hoeher | Gilbert J.M. Forkel

Considering high-order digital modulation schemes, the bottleneck in consumer products is the detector rather than the modulator. The complexity of the optimal a posteriori probability (APP) detector...

Mitigation of spectral leakage for single carrier, block-processing cognitive radio receivers

April 2018
Adam C. Polak | Mark Wagner | Marco F. Duarte | Robert W. Jackson | Dennis L. Goeckel

Cognitive Radio (CR) is a multiuser, wireless communication concept that allows for a dynamic and adaptive assignment of spectral resources. The coexistence of multiple users, often transmitting at...

A roadmap for security challenges in the Internet of Things

April 2018
Arbia Riahi Sfar | Enrico Natalizio | Yacine Challal | Zied Chtourou

Unquestionably, communicating entities (object, or things) in the Internet of Things (IoT) context are playing an active role in human activities, systems and processes. The high connectivity of intelligent...

Edge computing technologies for Internet of Things: a primer

April 2018
Yuan Ai | Mugen Peng | Kecheng Zhang

With the rapid development of mobile internet and Internet of Things applications, the conventional centralized cloud computing is encountering severe challenges, such as high latency, low Spectral...

Channel estimation and channel tracking for correlated block-fading channels in massive MIMO systems

April 2018
Suresh Dahiya | Arun Kumar Singh

This paper presents a channel estimation and tracking method for correlated block-fading channels in massive MIMO wireless cellular systems. In order to conserve resources, the proposed algorithm requires...

Multipath multihop mmWave backhaul in ultra-dense small-cell network

April 2018
Salman Saadat | Da Chen | Tao Jiang

Ultra-Dense Network (UDN) is considered to be the key enabler for realizing capacity goals set by 5G. The major concern in UDN deployment is the backhaul network, which should be scalable, cost-effective,...

A survey of 5G technologies: regulatory, standardization and industrial perspectives

April 2018
António Morgado | Kazi Mohammed Saidul Huq | Shahid Mumtaz | Jonathan Rodriguez

In recent years, there have been significant developments in the research on 5th Generation (5G) networks. Several enabling technologies are being explored for the 5G mobile system era. The aim is to...

Enhancing secrecy rates in a wiretap channel

Available online 29 March 2018
Shahid M. Shah | Vinod Sharma

Reliable communication imposes an upper limit on the achievable rate, namely the Shannon capacity. Wyner's wiretap coding ensures a security constraint and reliability, but results in a decrease of...

Gaussian broadcast channel with lossy state reconstruction

Available online 28 March 2018
Viswanathan Ramachandran

We consider a state reoconstruction problem where the additive state process of a Gaussian Broadcast Channel (GBC) is to be reconstructed at both receivers, subject to some distortion constraints. The...

Network selection in cognitive radio enabled Wireless Body Area Networks

Available online 28 March 2018
Monish Bhatia | Krishan Kumar

In recent years, interest in Wireless Body Area Networks (WBANs) has increased significantly due to the advancement in wireless communications. In wireless communication, all WBAN nodes that monitor...

Percolation analysis of large-scale wireless balloon networks

Available online 27 March 2018
M.D. Nashid Anjum | Honggang Wang | Hua Fang

Recent advancements in wireless technology have tested Wireless Balloon Networks (WBNs) as an ideal solution for the provision of internet facilities in deprived and challenging areas. A few high profile...

High mobility channel estimation method based on improved basis expansion model

Available online 26 March 2018
Jinjin Huang | Yisheng Zhao | Zhixiang Dong | Mengjia Chen | Zhonghui Chen

In this paper, the problem of high mobility channel estimation in the Long-Term Evolution for Railway (LTE-R) communication system is investigated. By using a Basis Expansion Model (BEM), the channel...

A comparative study of name resolution and routing mechanisms in information-centric networks

Available online 22 March 2018
Hang Liu | Koorosh Azhandeh | Xavier de Foy | Robert Gazda

Information-Centric Networking (ICN) is an innovative paradigm for the future Internet architecture, which addresses IP network limitations in supporting content distribution and information access...

QSM-IDM – A novel quadrature spatial modulation based on interleaving division multiplexing for multiple antenna system

Available online 2 March 2018
Sherif K. El Dyasti | Esam A.A. Hagras | Hadia El-Hennawy

Quadrature Spatial Modulation (QSM) is a high spectral efficiency Multiple-Input Multiple Output (MIMO) technique used to improve the spectral efficiency of wireless communication systems. The main...

Multifault diagnosis in WSN using a hybrid metaheuristic trained neural network

Available online 2 March 2018
Rakesh Ranjan Swain | Pabitra Mohan Khilar | Tirtharaj Dash

Wireless sensor networks are susceptible to failures of nodes and links due to various physical or computational reasons. Some physical reasons include a very high temperature, a heavy load over a node,...

PRECESION: progressive recovery and restoration planning of interdependent services in enterprise data centers

February 2018
Ibrahim El-Shekeil | Amitangshu Pal | Krishna Kant

The primary focus of this paper is to design a progressive restoration plan for an enterprise data center environment following a partial or full disruption. Repairing and restoring disrupted components...

An improved and secure multiserver authentication scheme based on biometrics and smartcard

February 2018
Ashish Kumar | Hari Om

With the advancement in internet technologies, the number of servers has increased remarkably to provide more services to the end users. These services are provided over the public channels, which are...

Effects of threshold based relay selection algorithms on the performance of an IEEE 802.16j mobile multi-hop relay (MMR) WiMAX network

February 2018
Chaudhuri Manoj Kumar Swain | Susmita Das

IEEE 802.16j MMR WiMAX network introduces multi-hop relay architecture, which involves cooperative relay stations focusing on increasing the network throughput and coverage. Relay selection algorithms...

Increasing public safety broadband network resiliency through traffic control

February 2018
R. Rouil | W. Garey | C. Gentile | N. Golmie | P. Schwinghammer

Long Term Evolution (LTE)-based cellular networks are being deployed around the world to provide public safety with enhanced capabilities and access to broadband technology. In the United States, the...

Transmission in mobile cloudlet systems with intermittent connectivity in emergency areas

February 2018
Chhabi Rani Panigrahi | Joy Lal Sarkar | Bibudhendu Pati

The recent development of Mobile Cloud Computing has helped in solving numerous real-life problems. The rate of growth of mobile devices has been increasing at a very high pace. Mobile devices have...

Trade-off between accuracy, cost, and QoS using a beacon-on-demand strategy and Kalman filtering over a VANET

February 2018
Zineb Squalli Houssaini | Imane Zaimi | Maroua Drissi | Mohammed Oumsis | Saïd El Alaoui Ouatik

Vehicular Ad-hoc Networks (VANETs) have been suggested as an active and powerful field of research to mitigate environmental problems and challenges. The main challenge in a VANET is to ensure routing...

QoS aware routing and wavelength allocation in optical burst switching networks using differential evolution optimization

February 2018
Ravi Sankar Barpanda | Ashok Kumar Turuk | Bibhudatta Sahoo

The issue of burst losses imposes a constraint on the development of Optical Burst Switching (OBS) networks. Heavy burst losses strongly affect the Quality of Service (QoS) intended by end users. This...

Beam interference suppression in multi-cell millimeter wave communications

Available online 31 January 2018
Zufan Zhang | Honghui Yu

Due to the increase in the number of users, beam switching is used for suppressing interference, which leads to higher computational complexity in multi-cell millimeter wave communications. In order...

A time-domain estimation method of rapidly time-varying channels for OFDM-based LTE-R systems

Available online 11 January 2018
Jin-Kyu Choi | Van Duc Nguyen | Hai Nam Nguyen | Van Vinh Duong | Tien Hoa Nguyen | Hanbyeog Cho | Hyun-Kyun Choi | Seong-Gyoon Park

This paper addresses the performance of fast doubly selective fading channel estimation combined with Inter-Carrier Interference (ICI) cancellation for Long Term Evolution (LTE) communication platform...

Combinatorial design-based Quasi-cyclic LDPC codes with girth eight

Available online 6 January 2018
Sina Vafi | Narges Rezvani Majid

This paper presents a novel regular Quasi-cyclic (QC) Low Density Parity Check (LDPC) codes with column-weight three and girth at least eight. These are designed on the basis of combinatorial design...

Low signaling overhead group-based power-control scheme for massive machine-type communications

Available online 3 November 2017
Zi-Yang Yang | Tsern-Huei Lee

Next-generation (5G) cellular networks must deal with massive Machine-Type Communications (MTC) for Internet of Things applications. Because of the potentially large number of coexisting MTC devices,...

CExp: secure and verifiable outsourcing of composite modular exponentiation with single untrusted server

November 2017
Shuai Li | Longxia Huang | Anmin Fu | John Yearwood

Outsourcing computing allows users with resource-constrained devices to outsource their complex computation workloads to cloud servers that may not be honest. In this paper, we propose a new algorithm...

A distributed authentication and authorization scheme for in-network big data sharing

November 2017
Ruidong Li | Hitoshi Asaeda | Jie Li | Xiaoming Fu

Big data has a strong demand for a network infrastructure with the capability to support data sharing and retrieval efficiently. Information-centric networking (ICN) is an emerging approach to satisfy...

Visualization of big data security: a case study on the KDD99 cup data set

November 2017
Zichan Ruan | Yuantian Miao | Lei Pan | Nicholas Patterson | Jun Zhang

Cyber security has been thrust into the limelight in the modern technological era because of an array of attacks often bypassing untrained intrusion detection systems (IDSs). Therefore, greater attention...

Achieving privacy-preserving big data aggregation with fault tolerance in smart grid

November 2017
Zhitao Guan | Guanlin Si

In a smart grid, a huge amount of data is collected for various applications, such as load monitoring and demand response. These data are used for analyzing the power state and formulating the optimal...

Job schedulers for Big data processing in Hadoop environment: testing real-life schedulers using benchmark programs

November 2017
Mohd Usama | Mengchen Liu | Min Chen

At present, big data is very popular, because it has proved to be much successful in many fields such as social media, E-commerce transactions, etc. Big data describes the tools and technologies needed...

A highly sustainable multi-band orthogonal wavelet code division multiplexing UWB communication system for underground mine channel

Available online 16 October 2017
Athar Ravish Khan | Sanjay M. Gulhane

The underground mine channel is highly hostile for communication. A sustainable communication system is required to be integrated as a multipurpose system capable of transferring all types of information...

A BCH code assisted modified NCO based LSPF-DPLL topology for Nakagami-m, Rayleigh and Rician fading channels

Available online 14 October 2017
Sabyasachi Bhattacharyya | Aradhana Misra | Kandarpa Kumar Sarma

In spite of the rapid developments in communication technologies over the past few decades, which include attractive features offered by the presently used 3G/4G systems, it continues to be a challenge...

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