Abstract
The outage probability (OP) performance of multiple-relay incremental-selective decode-and-forward (ISDF) relaying mobile-to-mobile (M2M) sensor networks with transmit antenna selection (TAS) over N-Nakagami fading channels is investigated. Exact closed-form OP expressions for both optimal and suboptimal TAS schemes are derived. The power allocation problem is formulated to determine the optimal division of transmit power between the broadcast and relay phases. The OP performance under different conditions is evaluated via numerical simulation to verify the analysis. These results show that the optimal TAS scheme has better OP performance than the suboptimal scheme. Further, the power allocation parameter has a significant influence on the OP performance.
Highlights
To meet the increasing demands for high-data-rate services, mobile-to-mobile (M2M)communications has attracted significant interest from both industry and academia [1]
The parameters are N = 2, m = 2, μ = 0 dB, Nt = 2, L = 2, Nr = 2, γth = 5 dB, γT = 2 dB, and γP = 2 dB. These results show that the outage probability (OP) performance improves as the signal-to-noise ratio (SNR) is increased
Performance results were presented which show with transmit antenna selection (TAS) over N-Nakagami fading channels
Summary
To meet the increasing demands for high-data-rate services, mobile-to-mobile (M2M). communications has attracted significant interest from both industry and academia [1]. In IR cooperative networks, if the signal-to-noise ratio (SNR) of the link between the source and relay is low, messages may not be decoded correctly by the relay, which can cause error propagation Considering these problems, Chen et al [19] proposed a novel incremental-selective DF (ISDF) relaying scheme over Rayleigh fading channels which combines the IDF and SDF relaying protocols [19]. The main contributions of this paper are as follows: Closed-form expressions for the probability density function (PDF) and cumulative density functions (CDF) of the SNR over N-Nakagami fading channels are presented These are used to derive exact closed-form OP expressions for optimal and suboptimal TAS schemes. The multiple-mobile-relay-based M2M sensor network model is of presented inisSection
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