Abstract
The device in conventional half-duplex WiFi networks cannot perform carrier sensing while in data transmission; thus it suffers from long collision duration. To mitigate this problem, this chapter introduces full-duplex (FD) technology into WiFi networks. A novel CSMA/CD protocol design is first presented for single-channel FD-WiFi, which facilitates continuous carrier sensing and transmission suspension. The network throughput performance is comprehensively analyzed by considering possible sensing errors (i.e., false alarm and miss detection) due to self-interference, and simulation results verify the performance analysis and the effectiveness of CSMA/CD protocol. Then the protocol for multi-channel FD-WiFi is provided, where the CSMA/CD protocol for accessing a certain channel is modified by adopting a contention window adjustment rule, and a distributed channel selection strategy is proposed based on the best-response algorithm. Simulation results indicate the performance improvement of multi-channel FD-WiFi protocol design.
Keywords
- Contention Window
- Successful Transmission
- False Alarm Probability
- Channel Selection
- Contention Window Size
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Song, L., Liao, Y., Song, L. (2017). Full-Duplex WiFi Networks. In: Zhang, W. (eds) Handbook of Cognitive Radio . Springer, Singapore. https://doi.org/10.1007/978-981-10-1389-8_17-1
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DOI: https://doi.org/10.1007/978-981-10-1389-8_17-1
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