Abstract
To evaluate the performance of the co-channel transmission based communication, we propose a new metric for area spectral efficiency (ASE) of interference limited ad-hoc network by assuming that the nodes are randomly distributed according to a Poisson point processes (PPP). We introduce a utility function, $U = ASE/\textrm{delay}$ and derive the optimal ALOHA transmission probability $p$ and the SIR threshold $\tau$ that jointly maximize the ASE and minimize the local delay. Finally, numerical results have been conducted to confirm that the joint optimization based on the $U$ metric achieves a significant performance gain compared to conventional systems.
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