Leakage rate based hybrid untrustworthy relay selection with channel estimation error
Volkan Özduran · 2017
This paper investigates the imperfect channel state information that is caused by channel estimation error on the leakage rate based hybrid untrustworthy relay selection strategy. The investigation considers a dual-hop multiple untrustworthy two-way half/full-duplex bi-directional wireless relaying in the system structure. According to analytical, asymptotic and Monte-Carlo simulation results, the hybrid leakage rate based untrustworthy relay selection strategy achieves cooperative diversity order in high signal-to-noise ratio regimes. Results also show that the channel estimation error causes system coding gain losses in low signal-to-noise ratio regimes. The channel estimation error effects turn out to be at negligible at high signal-to-noise ratio regimes. Results also show that friendly jammer severely effects the system performance and degrades the achievable cooperative diversity order from M to 0 and also causes system coding gain losses in high signal-to-noise ratio regimes.