Fig 5
BER vs. average SNR, ¯ γ of BPSK DF 3-hop system with different power allocation schemes and i.n.d. fading channels.
Source publication
Error performance and power allocation for multi-hop decode-and-forward (DF) systems are addressed. The different channels treated are Rayleigh, Rician, Nakagami-m, and Nakagami-q, and these are collectively referred to as generalized fading. The modulation can be any linear scheme. The asymptotic (high SNR) error rate expression is derivedwhich ca...
Context in source publication
Context 1
... in Set-3 which acts as a bottleneck. All the sets have G d = 1, although a Nakagami-m channel, with m > 1, is used within Set-2 and 4. This demonstrates the bottleneck action of the other hops, or alternatively, the futility of deploying diversity (the Nakagami-(m = 2) hops), in just one or some hops of otherwise strongly-fading multi- hop links. Fig. 5 gives the BER performance of a BPSK 3-hop DF system with different path gain variances, and with a power allocation from (19). The hops have i.n.d. fading where the first, second and third hops are Rayleigh, Rician (K = 2) and again Rayleigh, respectively. These hops have Ω 1 = 1, Ω 2 = 0.5, and Ω 3 = 0.01, and the noise variances (σ 2 ...
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