Coordinating Interfering Transmissions in Cooperative Wireless LANs
Antonios Argyriou

TL;DR
This paper introduces a cooperative MAC protocol for wireless LANs that leverages physical layer decoding of interfering transmissions, enabling simultaneous unicast transmissions to improve throughput and delay.
Contribution
It proposes a novel protocol that allows independent unicast transmissions to interfere constructively, with a dynamic relay selection mechanism for optimal performance.
Findings
Enhanced throughput demonstrated in simulations
Reduced delay compared to traditional methods
Effective interference management in cooperative WLANs
Abstract
In this paper we present a cooperative medium access control (MAC) protocol that is designed for a physical layer that can decode interfering transmissions in distributed wireless networks. The proposed protocol pro-actively enforces two independent packet transmissions to interfere in a controlled and cooperative manner. The protocol ensures that when a node desires to transmit a unicast packet, regardless of the destination, it coordinates with minimal overhead with relay nodes in order to concurrently transmit over the wireless channel with a third node. The relay is responsible for allowing packets from the two selected nodes to interfere only when the desired packets can be decoded at the appropriate destinations and increase the sum-rate of the cooperative transmission. In case this is not feasible, classic cooperative or direct transmission is adopted. To enable distributed,…
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