A low complexity detector with MRC diversity reception for MCIK-OFDM
A low complexity detector with MRC diversity reception for MCIK-OFDM
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DOI：
10.1109/pimrc.2016.7794732
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发表时间：
2016-12
期刊：
影响因子：
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通讯作者：
Eleftherios Chatziantoniou;J. Crawford;Y. Ko
中科院分区：
文献类型：
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作者：
Eleftherios Chatziantoniou;J. Crawford;Y. Ko
多载波索引键控（MCIK）是最近开发的利用子载波索引作为数据传输的附加自由度的传输技术。本文研究了正交频分复用（OFDM）下MCIK的低复杂度分集接收检测方案的性能。为了评估所提出的检测方案的性能，贪婪检测器（GD）与最大比合并（MRC）的成对错误概率（PEP）的精确和近似的封闭形式的表达式推导。结果表明，当采用MRC分集时，GD的性能得到显着改善。所提出的混合方案被发现优于最大似然（ML）检测与相关的计算复杂度上的大幅减少。
Multi-carrier index keying (MCIK) is a recently developed transmission technique that exploits sub-carrier indices as an additional degree of freedom for data transmission. This paper investigates the performance of a low complexity detection scheme with diversity reception for MCIK with orthogonal frequency division multiplexing (OFDM). In order to evaluate the performance of the proposed detection scheme, an exact and an approximate closed-form expression for the pairwise error probability (PEP) of greedy detector (GD) with maximal ratio combining (MRC) is derived. The presented results show that the performance of the GD is significantly improved when MRC diversity is employed. The proposed hybrid scheme is found to outperform maximum likelihood (ML) detection with a substantial reduction on the associated computational complexity.