International Journal of Communication Systems

Cover image for Vol. 30 Issue 5

Edited By: Professor Mohammad S. Obaidat

Impact Factor: 1.099

ISI Journal Citation Reports © Ranking: 2015: 42/82 (Telecommunications); 145/257 (Engineering Electrical & Electronic)

Online ISSN: 1099-1131

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The International Journal of Communication Systems

The International Journal of Communication Systems provides a forum for R&D, open to researchers from all types of institutions and organisations worldwide, aimed at the increasingly important area of communication technology. The Journal's emphasis is particularly on the issues impacting behaviour at the system, service and management levels. Published twelve times a year, it provides coverage of advances that have a significant potential to impact the immense technical and commercial opportunities in the communications sector.

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Recently Published Articles

  1. Levenberg-Marquardt optimization method for coverage and connectivity control in backbone-based wireless networks

    Khalid Khan and D. K. Lobiyal

    Version of Record online: 22 FEB 2017 | DOI: 10.1002/dac.3296

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    In this paper, we propose the use of Levenberg-Marquardt optimization algorithm to achieve assured coverage and connectivity control in backbone-based wireless networks. Simulation is performed to demonstrate the effectiveness in terms of the number of iterations, elapsed time, and power requirement. The performance is compared with Cauchy steepest descent method as well as Newton-Raphson method.

  2. An energy-efficient algorithm based on sleep-scheduling in IP backbone networks

    Fahimeh Dabaghi-Zarandi and Zeinab Movahedi

    Version of Record online: 21 FEB 2017 | DOI: 10.1002/dac.3276

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    In this paper, we propose a new Distributed Green Algorithm based on Sleep-scheduling (DGAS) to save energy in Internet backbone networks. The DGAS switches off some low-occurrent network links and nodes in 2 consecutive decremental and incremental phases. Our solution does not depend on any centralized controller and any knowledge of traffic matrix.

  3. Performance comparison of dual-hop hybrid decode-or-amplify-forward relay schemes for M-ary quadrature amplitude modulation burst transmission over Rayleigh fading channels

    Choongchae Woo, Sungmook Lim and Kyunbyoung Ko

    Version of Record online: 20 FEB 2017 | DOI: 10.1002/dac.3295

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    This paper shows the analytical performance expressions of M-ary quadrature amplitude modulation (M-QAM) burst symbol transmission for hybrid decode-or-amplify-forward (HDAF) relay schemes over quasi-static Rayleigh fading channels. The analysis shows the superiority of HDAF scheme to ADF scheme, especially in higher order modulation and more numbers of relays. Comparison with simulations confirms that the derived analytical expressions are accurate over all SNR regions and for different numbers of relays and modulation orders.

  4. Cluster based resource allocation in two-tier HetNets with hierarchical throughput constraints

    Li Li and Zhaorong Zhou

    Version of Record online: 20 FEB 2017 | DOI: 10.1002/dac.3292

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    In this paper, we investigate the resource allocation and interference mitigation problem in cluster based OFDMA two-tier HetNets. To compensate hybrid access small cells for their resources loss, we impose hierarchical user throughput constraints on the optimization problem, which guarantee these small cells more resources than closed access ones. Based on the subgradient iteration, a joint subchannel and power allocation algorithm is proposed.

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    Editorial for the special issue on heterogeneous sensors–based object identification and information fusion

    Huansheng Ning, Didier El Baz, Laurence T. Yang and Rui Wang

    Version of Record online: 17 FEB 2017 | DOI: 10.1002/dac.3298

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