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Mobile Information Systems
Volume 2017, Article ID 3708142, 11 pages
https://doi.org/10.1155/2017/3708142
Research Article

End-to-End Data Rate Performance of Decode-and-Forward Relaying with Different Resource Allocation Schemes

1Department of Communications and Networking, Aalto University, Espoo, Finland
2Centre Tecnològic Telecomunicacions Catalunya, Barcelona, Spain
3Department of Computer Science, University of Texas at Dallas, Richardson, TX, USA

Correspondence should be addressed to Inam Ullah; if.otlaa@hallu.mani

Received 19 June 2017; Revised 1 September 2017; Accepted 18 September 2017; Published 26 October 2017

Academic Editor: Massimo Condoluci

Copyright © 2017 Inam Ullah et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper studies the end-to-end (e2e) data rate of dual-hop Decode-and-Forward (DF) infrastructure relaying under different resource allocation schemes. In this context, we first provide a comparative analysis of the optimal resource allocation scheme with respect to several other approaches in order to provide insights into the system behavior and show the benefits of each alternative. Then, assuming the optimal resource allocation, a closed form expression for the distribution of the mean and outage data rates is derived. It turns out that the corresponding mean e2e data rate formula attains an expression in terms of an integral that does not admit a closed form solution. Therefore, a tight lower bound formula for the mean e2e data rate is presented. Results can be used to select the most convenient resource allocation scheme and perform link dimensioning in the network planning phase, showing the explicit relationships that exist between component link bandwidths, SNR values, and mean data rate.