On the performance of NCC-OFDMA systems in the presence of carrier frequency offset
Type :
Conference paper
Publication Status :
Published
Access :
restrictedAccess
Abstract
Network coded cooperative (NCC) systems have recently gained increasing attention due to their high power and spectral efficiency. For high speed data transmission over frequency-selective channels, NCC is further combined with orthogonal frequency division multiple access (OFDMA). In this paper, we derive outage probability and diversity gain of NCC-OFDMA systems in the presence of carrier frequency offset (CFO). Our results demonstrate that NCC-OFDMA system is capable to achieve full spatial and frequency diversity in noise limited system where the CFO variance σ2ε → 0. However, in interference limited case where the CFO variance σ2ε > 0, error floor occurs leading zero diversity gain. Numerical results are further presented to validate our analytical findings.
Source :
Communications (ICC), 2017 IEEE International Conference on
Date :
2017
Publisher :
IEEE
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