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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/15081

Title: Optimal Power and Modulation Adaptation Policies with Receiver Diversity over Rayleigh Fading Channel
Authors: Tariq, Muhammad Imran
Beuran, Razvan
Shinoda, Yoichi
Keywords: adaptive transmission
diversity combining
bit error rate
switching threshold
Rayleigh fading
Issue Date: 2016-10
Publisher: Institute of Advanced Engineering and Science
Magazine name: Indonesian Journal of Electrical Engineering and Computer Science (IJEECS)
Volume: 4
Number: 1
Start page: 104
End page: 115
DOI: 10.11591/ijeecs.v4.i1.pp104-115
Abstract: Efficient bandwidth utilization is paramount in wireless communication systems, particulary in fading environments, since fading is one of the major constraints that impair communication in wireless systems. The bandwidth efficiency of a wireless communication system can be enhanced significantly by employing power and modulation adaptation policies with diversity combining gain. In this work, first we examine an analytically-derived solution for Maximum Combining Ratio (MRC) diversity technique for the capacity per unit bandwidth. Then, we design an adaptive transmission system to utilize the diversity combining gain whileretaining the target BER by adapting power and constellation size using continuous power, channel inversion with fixed rate and continuous power and disrecte-rate. By considering the effect of diversity combining. gain, the designed system yields a reasonable spectral efficiency with respect to target BER that grows as the number of diversity levels increase. Furthermore, the presented results show continuous power and discrete-rate adaptation policy reduces probability of outage unlike its achieved spectral efficiency is closeto other selected policies, which ratifies the optimized switching thresholds and makes it best candidate for imperfect channel conditions.
Rights: Muhammad Imran Tariq, Razvan Beuran, Yoichi Shinoda, Indonesian Journal of Electrical Engineering and Computer Science (IJEECS), 4(1), 2016, 104-115. This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. https://creativecommons.org/licenses/by-nc/4.0/
URI: http://hdl.handle.net/10119/15081
Material Type: publisher
Appears in Collections:b10-1. 雑誌掲載論文 (Journal Articles)

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