Buffer-Aided Multi-Hop DF Cooperative Networks: A State-Clustering Based Approach

摘要: This paper analyzes the performance of a buffer-aided multi-hop relaying system using max-link relay selection scheme for decode-and-forward cooperative networks. A Markov chain approach is adopted to analyze state transition matrix that models evolution status buffers. Analytical expressions steady-state probability vector are obtained three-hop system, and through these expressions, we observe states with same probabilities can be clustered, thus reducing size matrix. We propose state-clustering-based method obtain reduced matrix, which further used derive an analytical expression outage computational complexity. The general in sense it does not require any prior knowledge about Furthermore, illustrate, detail, construction related distribution by example. An average packet delay also derived. Both simulation results provided investigate