Title :
Performance analysis of adaptive maximal ratio/ selection combining based on full CSI and maximum flow constraint
Author :
Muthukumar, Shivkumar ; Nagarajan, Vijay
Author_Institution :
Dept. of Electron. & Commun. Eng., Adhiparasakthi Eng. Coll., Melmaruvathur, India
Abstract :
Cooperative diversity effectively mitigates the fading effect in wireless communication. The system with a source, a destination and the multiple relays is considered for performance analysis. The relay with best channel conditions perform the Decode and Forward (DF) relaying in distributed manner. Then the receiver combines the received signal with the full Channel State Information (CSI) using Maximum Ratio Combining (MRC) for the received instantaneous Signal to Noise Ratio (SNR) of source-relay channel greater than the SNR of relay-destination channel, otherwise Selection Combining (SC) is used to select the channel with maximum SNR. The end-to-end Symbol Error Probability (SEP) with DF relaying for QPSK symbol using proposed combining techniques is derived in closed form, the results shows proposed adaptive combining has better performance than the conventional cooperation scheme.
Keywords :
cooperative communication; decode and forward communication; diversity reception; quadrature phase shift keying; radio receivers; radiocommunication; relay networks (telecommunication); CSI; QPSK symbol; adaptive maximal ratio/selection combining; channel state information; cooperative diversity; decode and forward relaying; end-to-end symbol error probability; maximum ratio combining; relay-destination channel; signal to noise ratio; source-relay channel; wireless communication; Adaptation models; Adaptive arrays; Analytical models; Diversity reception; Fading; Numerical models; Phase shift keying; cooperative diversity; decode and forward; maximal ratio combining; selection combining; symbol error probability;
Conference_Titel :
Communications and Signal Processing (ICCSP), 2014 International Conference on
Conference_Location :
Melmaruvathur
Print_ISBN :
978-1-4799-3357-0
DOI :
10.1109/ICCSP.2014.6950148
