期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2014
卷号：65
期号：1
出版社：Journal of Theoretical and Applied
摘要：Spatial diversity is an inherent nature of wireless communications. This nature can be exploited to make communications more reliable by Multiple-Input-Multiple-Output (MIMO). However the use of multiple co-located antennas is constrained by the dimensions of modern devices. To overcome this drawback cooperative relaying shares antennas between different network nodes thus realizing a Virtual antenna arrays (VAA). In this paper we study a single user relay network aided Hybrid-ARQ (H-ARQ) type I consisting of a source, a relay and a destination. We provide the closed form expressions for the outage probability and delay. We use a numerical method based on relative distance between nodes to estimate the optimum amount of power to be allocated to source and relay. The numerical results show the accuracy of our analytical expressions. In addition proposed allocation strategy outperforms the equal power allocation.
