Analysis and comparison of hot-potato and single-buffer deflection routing in very high bit rate optical mesh networks

The steady state behavior of regular two-connected multihoP networks in uniform traffic under hot-Pobto and a simple single-buffer deflection routing technique is analyzed for very high bit rate optical applications. Manhattan Street Network and ShuffleNet are compared in terms of throughput, delay, deflection probability, and hop distribution both analytically and by simulation. It is analytically verified that this single-buffer deflection routing technique recovers in both networks more than 6O% of the throughput loss of hot-pohto with respect to store-and-forward when packets are generated with independent the average message length exceeds 20 packets. destinations. This gain, however, decreases to below 40% when the average message length exceeds 20 packets.