Abstract
The conventional design of cellular systems prescribes the separation of uplink and downlink transmissions via time-division or frequency-division duplex. Recent advances in analog and digital domain self-interference interference cancellation challenge the need for this arrangement and open up the possibility to operate base stations, particularly low-power ones, in a full-duplex mode. As a means to cope with the resulting downlink-to-uplink interference among base stations, this letter investigates the impact of the Cloud Radio Access Network (C-RAN) architecture. The analysis follows an information theoretic approach based on the classical Wyner model. The analytical results herein confirm the significant potential advantages of the C-RAN architecture in the presence of full-duplex base stations, as long as sufficient fronthaul capacity is available and appropriate mobile station scheduling, or successive interference cancellation at the mobile stations, is implemented.
Original language | English (US) |
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Article number | 6845310 |
Pages (from-to) | 413-416 |
Number of pages | 4 |
Journal | IEEE Wireless Communications Letters |
Volume | 3 |
Issue number | 4 |
DOIs | |
State | Published - Aug 2014 |
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Electrical and Electronic Engineering
Keywords
- Full duplex
- Wyner model
- cellular wireless systems
- cloud radio access networks (C-RAN)
- successive interference cancellation.