A simple non-coherent Physical-layer Network Coding for transmissions over two-way relay channels

TY - CHAP

T1 - A simple non-coherent Physical-layer Network Coding for transmissions over two-way relay channels

AU - Zhu, K.

AU - Burr, A.G.

PY - 2012/1/1

Y1 - 2012/1/1

N2 - Physical-layer Network Coding (PNC) can effectively improve the overall throughput of a multi-hop cooperative network communicating over two-way relay channels. In this contribution, we present a novel non-coherent/differential PNC scheme, which inherits the advantages provided by conventional PNC. We show that, although the assisting relay node has no access to the Channel State Information (CSI), our proposed non-coherent PNC detector with a low-complexity dual-branch structure is still capable of acquiring the network-coded symbols directly from a linearly superimposed signal. Compared with conventional two-way relay systems employing an inefficient four time-slot scheduling protocol, non-coherent PNC aided bidirectional cooperation scheme is able to double the throughput by elimination of two transmission periods. Therefore, significant improvements in the spectral efficiency and network capacity can be attained by incorporating this novel non-coherent PNC technique in the two-way relaying scenario.

AB - Physical-layer Network Coding (PNC) can effectively improve the overall throughput of a multi-hop cooperative network communicating over two-way relay channels. In this contribution, we present a novel non-coherent/differential PNC scheme, which inherits the advantages provided by conventional PNC. We show that, although the assisting relay node has no access to the Channel State Information (CSI), our proposed non-coherent PNC detector with a low-complexity dual-branch structure is still capable of acquiring the network-coded symbols directly from a linearly superimposed signal. Compared with conventional two-way relay systems employing an inefficient four time-slot scheduling protocol, non-coherent PNC aided bidirectional cooperation scheme is able to double the throughput by elimination of two transmission periods. Therefore, significant improvements in the spectral efficiency and network capacity can be attained by incorporating this novel non-coherent PNC technique in the two-way relaying scenario.

UR - http://www.scopus.com/inward/record.url?scp=84877681272&partnerID=8YFLogxK

U2 - 10.1109/GLOCOM.2012.6503453

DO - 10.1109/GLOCOM.2012.6503453

M3 - Chapter

AN - SCOPUS:84877681272

SN - 9781467309219

SP - 2268

EP - 2273

BT - Global Telecommunications Conference GLOBECOM - IEEE 2012

PB - IEEE

T2 - Global Telecommunications Conference GLOBECOM - IEEE 2012

Y2 - 3 December 2012 through 7 December 2012

ER -