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Lookup NU author(s): Muayad Al-Janabi,
Professor Harris Tsimenidis,
Professor Bayan Sharif,
Dr Stephane Le Goff
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Resource allocation for a downlink orthogonal frequency division multiple access (OFDMA) system ensures that capacity and throughput are maximized. In the literature, either channel coding is not considered or only a fixed code rate is specified. To overcome this problem, an optimized cross-layer resource allocation strategy that distributes the user, bit and power optimally has been proposed for adaptive modulation and coding (AMC) based single-cell downlink OFDMA systems. The proposed strategy, which is referred to as optimized user, bit and power allocation (OUBPA), considers throughput as a new cost function in terms of spectral efficiency and bit-error rate (BER) to allocate the available resources. An optimized approach is presented for solving the throughput maximization problem and simulation results demonstrating that the throughput performance of the OFDMA-AMC system using OUBPA strategy outperforms conventional techniques. © 2013 IEEE.
Author(s): Al-Janabi MS, Tsimenidis CC, Sharif BS, Le Goff SY
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: 20th IEEE International Conference on Electronics, Circuits, and Systems
Year of Conference: 2013
Online publication date: 15/05/2014
Publisher: Institute of Electrical and Electronics Engineers Inc.
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