Random Access With Physical-Layer Network Coding

We consider a physical-layer network coding strategy for the random-access channel, based on compute-and-forward. When packets collide, it is possible to reliably recover a linear combination of the packets at the receiver. Over many rounds of transmission, the receiver can thus obtain many linear c...

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Vydané v:IEEE transactions on information theory Ročník 61; číslo 7; s. 3670 - 3681
Hlavní autori: Goseling, Jasper, Gastpar, Michael, Weber, Jos H.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York IEEE 01.07.2015
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:
AWGN channels
Coding theory
Communication channels
Decoding
Electronics
Network coding
Receivers
Reliability
Throughput
Transmitters
Wireless communication
multiaccess communication
access protocols
information theory
channel coding
ISSN:0018-9448, 1557-9654
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Popis
Shrnutí:We consider a physical-layer network coding strategy for the random-access channel, based on compute-and-forward. When packets collide, it is possible to reliably recover a linear combination of the packets at the receiver. Over many rounds of transmission, the receiver can thus obtain many linear combinations and eventually recover all original packets. This is by contrast to slotted ALOHA where packet collisions lead to complete erasures. The strategy is shown to be significantly superior to the best known strategies, including multipacket reception.
Bibliografia:SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 14
ISSN:0018-9448
1557-9654
DOI:10.1109/TIT.2015.2425879