A Framework for Crosslayer Optimization from Physical Layer to Routing Layer on Wireless Ad Hoc Networks

In this paper, we propose a general framework for wireless network optimization across physical, medium access control (MAC), and routing layers, applicable to various multiaccess techniques and physical layer settings. The traffic on the entire network is specified by a sequence of routing matrices which together with crosslayer settings and network topology can determine the throughput for each node, each route, and the entire network. To illustrate the applicability, the framework is applied to a multihop ad hoc network based on CDMA, employing multiuser detection technique with retransmission diversity. It is also shown that the approach based on the proposed framework can improve the network throughput by exploiting retransmitted packets and interference cancellation.

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