Opportunistic Scheduling over Wireless Fading Channels without Explicit Feedback

A novel approach for implementation of opportunistic scheduling without explicit feedback channels is proposed in this paper, which exploits the existing ARQ signals instead of feedback channels to reduce the complexity of implementation. Monte Carlo simulation results demonstrate the efficacy of the proposed approach in harvesting multiuser diversity gain. The proposed approach enables implementation of opportunistic scheduling in a variety of wireless networks, such as the IEEE 802.11, without feedback facilities for collecting partial channel state information from users.