Effects of relay selection strategies on the spectral efficiency of wireless systems with half- and full-duplex nodes
de Lima, Carlos H. M.; Alves, Hirley; Nardelli, Pedro. H. J.; Latva-aho, Matti (2017-08-01)
C. H. M. de Lima, H. Alves, P. H. J. Nardelli and M. Latva-aho, "Effects of relay selection strategies on the spectral efficiency of wireless systems with half- and full-duplex nodes," in IEEE Transactions on Vehicular Technology, vol. 66, no. 8, pp. 7578-7583, Aug. 2017. doi: 10.1109/TVT.2017.2661963
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https://urn.fi/URN:NBN:fi-fe2019060318257
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Abstract
This work proposes an analytical framework to study how relay selection strategies perform in half- and full-duplex deployments by combining renewal theory and stochastic geometry. Specifically, we assume that the network nodes-operating in either half- or full-duplex mode-are scattered according to a 2-D homogeneous Poisson point process to compute the relay selection cost by using a semi-Markov process. Our results show that: 1) fixed relay outperforms the reactive option in either cases; 2) the performance of both reactive and fixed relay strategies depends on the self-interference attenuation in full-duplex scenarios, evincing when they outperform the half-duplex option; and 3) the reactive relay selection suffers from selecting relays at hop basis, while the fixed relay selection benefits most from the full-duplex communication.
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