Title | ||
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On the Capacity Gain from Full Duplex Communications in a Large Scale Wireless Network. |
Abstract | ||
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Compared to half duplex communications, full duplex communications can significantly improve link capacity. However, in a large scale wireless network such as a wireless mesh network, the capacity gain from full duplex communications has not been fully investigated. To this end, a metric of network capacity called transmission capacity is studied in this paper for a full duplex wireless network. It captures the maximum transmission throughput in a unit area, subject to a certain outage probability. The key challenge of deriving transmission capacity is to characterize the aggregate interference of the typical link in a full duplex wireless network, which is completely different from that in a half duplex wireless network. In this paper, stochastic geometry is employed to model the network topology as a Thomas cluster point process and then the aggregate interference is characterized as a shot-noise process. Based on these models, the transmission capacity is derived. Analytical results show that under the same network density the distribution of aggregate interference in a full duplex wireless network is more dispersed than that in a half duplex wireless network. Comparisons of transmission capacity between a full duplex network and a half duplex network reveal that the capacity gain from full duplex communications is limited due to severe aggregate interference. This result implies that self-interference cancellation alone cannot ensure scalable full duplex wireless networking. |
Year | DOI | Venue |
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2016 | 10.1109/TMC.2015.2492544 | IEEE Trans. Mob. Comput. |
Keywords | Field | DocType |
Interference,Wireless networks,Aggregates,Network topology,Throughput,Receivers | Wireless network,Computer science,Computer network,Wireless WAN,Network switch,Network topology,Wireless mesh network,Throughput,Wi-Fi array,Duplex (telecommunications) | Journal |
Volume | Issue | ISSN |
15 | 9 | 1536-1233 |
Citations | PageRank | References |
10 | 0.54 | 14 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Xudong Wang | 1 | 1321 | 109.09 |
Huaiyu Huang | 2 | 10 | 0.54 |
Taewon Hwang | 3 | 399 | 31.78 |