Cooperative Relaying in Wireless Networks under Spatially and Temporally Correlated Interference
نویسندگان
چکیده
We analyze the packet delivery performance of wireless cooperative relaying in an interference limited scenario, by means of stochastic geometry. We show that the temporal and spatial characteristics of interference play a significant role in shaping the system performance. In particular, when interference has high temporal and spatial dependence, the packet delivery probability increases for harsh communication conditions but decreases for good communication conditions. We also show that these properties of interference affect the optimal positions of relays. Hence, when studying cooperative protocols one should carefully account for interference dynamics for obtaining meaningful results. We also discuss different detection strategies at the destination, namely selection combining and maximal ratio combining. We find that maximal ratio combining is effective only when relays are close to the source. The benefits of maximal ratio combining vanish when relays move toward the destination, which is the scenario with the maximum packet delivery probability.
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