Inter-relay interference cancellation for wireless multi-user multi-decode-and-forward relay networks
Abstract
In this paper, a cooperative communication scheme with inter-relay interference (IRI) cancellation is proposed for wireless multi-user multi-decode-and-forward (DF) relay networks. The scheme is based on a DF half-duplex (HD) relaying protocol and a relay selection method which maximizes the signal-to-noise ratio (SNR) of the second hop. To enhance the spectral efficiency and cancel the IRI, the proposed scheme (constellation real part (CRP)) uses a new virtual full-duplex relaying protocol based on the constellation real parts of the modulated signals and the two-path successive relay scheme. To assess the performance, we derive the expressions of the outage probability, and the average bit error rate (BER) for the CRP scheme. Simulations are used to validate the analytical expressions. The results confirm the advantage of the proposed scheme in enhancing the performance of wireless cooperative networks.
Collections
- Electrical Engineering [2649 items ]
Related items
Showing items related by title, author, creator and subject.
-
Partial relay selection in underlay cognitive networks with fixed gain relays
( IEEE , 2012 , Conference Paper)In a communication system with multiple cooperative relays, selecting the best relay utilizes the available spectrum more efficiently. However, selective relaying poses a different problem in underlay cognitive networks ... -
Performance analysis of best relay selection scheme for fixed gain cooperative networks in non-identical Nakagami-m channels
( IEEE , 2010 , Conference Paper)Selecting the best relay among all the relays ready to cooperate saves system resources and utilizes the available bandwidth more efficiently compared to the regular all-relay cooperation. This scheme also achieves the ... -
On hierarchical network coding versus opportunistic user selection for two-way relay channels with asymmetric data rates
( IEEE , 2013 , Article)We address in this paper the challenge of coping with asymmetric data rates in two-way relay channels. We consider a relay network comprising two sources and one relay. The sources communicate at different rates through ...