Abstract
In this paper, we study a three-node full-duplex network, where a base station is engaged in simultaneous up-and downlink communication in the same frequency band with two half-duplex mobile nodes. To reduce the impact of inter-node interference between the two mobile nodes on the system capacity, we study how an orthogonal side-channel between the two mobile nodes can be leveraged to achieve full-duplex-like multiplexing gains. We propose and characterize the achievable rates of four distributed full-duplex schemes, labeled bin-and-cancel, compress-and-cancel, estimate-and-cancel and decode-and-cancel. Of the four, bin-and-cancel is shown to achieve within 1 bit/s/Hz of the capacity region for all values of channel parameters. In contrast, the other three schemes achieve the near-optimal performance only in certain regimes of channel values. Asymptotic multiplexing gains of all proposed schemes are derived to show that the side-channel is extremely effective in regimes where inter-node interference has the highest impact.
Original language | English (US) |
---|---|
Article number | 6571320 |
Pages (from-to) | 4162-4173 |
Number of pages | 12 |
Journal | IEEE Transactions on Wireless Communications |
Volume | 12 |
Issue number | 8 |
DOIs | |
State | Published - 2013 |
Keywords
- capacity region
- device-to-device communication
- Full-duplex wireless
- interference management
- wireless side-channels
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics