期刊
IEEE COMMUNICATIONS LETTERS
卷 14, 期 6, 页码 500-502出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2010.06.100163
关键词
Space Shift Keying (SSK) modulation; optimization; fading channels; opportunistic power allocation
资金
- EPSRC [EP/G011788/1]
- Scottish Funding Council
- Engineering and Physical Sciences Research Council [EP/G011788/1] Funding Source: researchfish
- EPSRC [EP/G011788/1] Funding Source: UKRI
In this Letter, we show that the performance of Space Shift Keying (SSK) modulation can be improved via opportunistic power allocation methods. For analytical tractability, we focus on a 2 x 1 Multiple-Input-Multiple-Output (MIMO) system setup over correlated Rayleigh fading channels. A closed-form solution of the optimal power allocation problem is derived, and it is shown that the transmit-power of each transmit-antenna should be chosen as a function of the power imbalance ratio and correlation coefficient of the transmit-receive wireless links. Numerical results are shown to substantiate the analytical derivation and the claimed performance improvement.
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