Adaptive channel allocation spectrum etiquette for cognitive radio networks
Mobile Networks and Applications
A game-theoretic look at throughput and stability in random access
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Game Theoretic Cross-Layer Transmission Policies in Multipacket Reception Wireless Networks
IEEE Transactions on Signal Processing
Pricing and power control in a multicell wireless data network
IEEE Journal on Selected Areas in Communications
Coalitions in Cooperative Wireless Networks
IEEE Journal on Selected Areas in Communications
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We consider a slotted ALOHA setting where backlogged, energy-constrained users selfishly select the probability with which they transmit packets. Packets are successfully received, even in case of collision, if the signal to interference plus noise ratio at the access point exceeds some threshold (power capture). The user problem of finding appropriate transmission probabilities is formulated as a static non-cooperative game and the performance limits for stationary and mobile scenarios are determined. The equilibrium analyses show that for stationary scenarios, users with high pathgains share the channel fairly while others never transmit. In the mobile case users utilize a binary strategy where they try to monopolize the channel when their pathgain exceeds some threshold that depends on system parameters (number of users, transmission costs, etc.). Otherwise they shut their transmitters off. Compared to traditional nondiscriminatory distributed multiaccess protocols the operating points achieved by selfish users generally increase sum-utility although this comes at the expense of larger user performance variations.