Adaptive Power Allocation for Effective Capacity of TAS-MRC Systems

In this paper, the effective capacity of transmit antenna selection-maximal ratio combining (TAS-MRC) systems is studied. By considering constant power allocation, a closed-form expression for the effective capacity is derived. While for variable power allocation, restricted by the average power, op...

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Bibliographic Details
Published inFrequenz Vol. 67; no. 11; pp. 379 - 386
Main Authors Guo, Xiaobo, Dong, Lei, Yi, Kechu, Yang, Hong
Format Journal Article
LanguageEnglish
Published Berlin De Gruyter 01.12.2013
Walter de Gruyter GmbH
Subjects
adaptive power allocation
effective capacity
maximal ratio combining (MRC)
transmit antenna selection (TAS)
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Summary:In this paper, the effective capacity of transmit antenna selection-maximal ratio combining (TAS-MRC) systems is studied. By considering constant power allocation, a closed-form expression for the effective capacity is derived. While for variable power allocation, restricted by the average power, optimal power allocation scheme and associated effective capacity is given. Adaptive modulation is used for both constant and variable power allocation, and the superiority of variable power allocation versus constant power allocation is demonstrated by the computer simulations.
ISSN:0016-1136
2191-6349
DOI:10.1515/freq-2013-0034