Maximizing Sum-Rate for Multi-User Two-Way Relaying Networks with ANC Protocol
نویسندگان
چکیده
In this paper we study the resource allocation problem for an OFDMA based cooperative two-way relaying (TWR) network. We focus on amplify and forward (AF) analog network coding (ANC) protocol. An optimization problem for two basic resources namely, sub-carrier and power is formulated for multi-user TWR networks. A joint optimal optimization problem is investigated and two-step low complexity sub-optimal resource allocation algorithm is proposed for multi-user TWR networks with ANC protocol. The proposed algorithm has been evaluated in term of total achievable system sum-rate and achievable individual sum-rate for each userpair. The good tradeoff between system sum-rate and fairness is observed in the two-step proportional resource allocation scheme. Keywords—Relay Network, Relay Protocols, Resource Allocation, Two –way relaying.
منابع مشابه
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تاریخ انتشار 2012