Computer Engineering Commons^™

Minimizing The Retransmission Delay And Energy Expense Of Arq With The Optimal Placement Of Caching Routers In A Video Communication Network, Jesus Enrique Hernandez

Open Access Theses & Dissertations

The use of intermediary caching routers to service retransmission requests was investigated in this thesis. The main goal is to reduce the expected retransmission delay in a video communication network where the capacity for intermediate caching routers is constrained. In order to reduce the retransmission delay, the effect of the placement of routers with caching ability is investigated. Moreover, as a consequence of reducing the retransmission distance, the energy spent on retransmitting video packets is reduced as well. The average retransmission delay and the average energy consumption were modeled with mathematical programs that select the optimal placement of caching routers …