Title
On the Capacity Gain from Full Duplex Communications in a Large Scale Wireless Network.
Abstract
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
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 Wang11321109.09
Huaiyu Huang2100.54
Taewon Hwang339931.78