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Design and Implementation of a Full-Duplex Pipelined MAC Protocol for Multihop Wireless Networks
Cited 10 time in
Web of Science
Cited 12 time in Scopus
- Authors
- Issue Date
- 2017
- Citation
- IEEE Access, Vol.5, pp.14930-14942
- Abstract
- In multihop wireless networks, data packets are forwarded from a source node to a destination node through intermediate relay nodes. With half-duplex relay nodes, the end-to-end delay performance of a multihop network degrades as the number of hops increases, because the relay nodes cannot receive and transmit at the same time. Full-duplex relay nodes can reduce their per-hop delay by starting to forward a packet before the whole packet is received. In this paper, we propose a pipelined medium access control (PiMAC) protocol, which enables the relay nodes on a multihop path to simultaneously transmit and receive packets for full-duplex forwarding. For pipelined transmission over a multihop path, it is important to suppress both the self-interference of each relay node with the full-duplex capability and the intra-flow interference from the next relay nodes on the same path. In the PiMAC protocol, each relay node can suppress both the self-and intra-flow interference for full-duplex relaying on the multihop path by estimating the channel coefficients and delays of the interference during a multihop channel acquisition phase. To evaluate the performance of the PiMAC protocol, we carried out extensive simulations and software-defined radio based experiments.
- ISSN
- 2169-3536
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Related Researcher
- College of Engineering
- Department of Electrical and Computer Engineering
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