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Design and Analysis of Relay-aided Broadcast using Binary Network Codes
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-5407-0835
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-7182-9543
2011 (English)In: Journal of Communication, ISSN 0021-9916, E-ISSN 1460-2466, Vol. 6, no 8, 610-617 p.Article in journal (Refereed) Published
Abstract [en]

We consider a base-station broadcasting a set of order-insensitive packets to a user population over packet-erasure channels. To improve efficiency we propose relay-aided transmission using instantaneously-decodable binary network coding. The proposed coding schemes have the benefits of minimal decoding delay and low complexity. We further analyze the performance of the resulting broadcast schemes, and show that significant improvements in transmission efficiency are obtained as compared to previously proposed ARQ and network-coding-based schemes.

Place, publisher, year, edition, pages
Academy Publisher , 2011. Vol. 6, no 8, 610-617 p.
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-41484DOI: 10.4304/jcm.6.8.610-617Scopus ID: 2-s2.0-80655142302OAI: oai:DiVA.org:kth-41484DiVA: diva2:444019
Note

QC 20160420

Available from: 2011-09-27 Created: 2011-09-27 Last updated: 2017-12-08Bibliographically approved
In thesis
1. Wireless Broadcasting with Network Coding
Open this publication in new window or tab >>Wireless Broadcasting with Network Coding
2011 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

Wireless digital broadcasting applications such as digital audio broadcast (DAB) and digital video broadcast (DVB) are becoming increasingly popular since the digital format allows for quality improvements as compared to traditional analogue broadcast. The broadcasting is commonly based on packet transmission. In this thesis, we consider broadcasting over packet erasure channels. To achieve reliable transmission, error-control schemes are needed. By carefully designing the error-control schemes, transmission efficiency can be improved compared to traditiona lautomatic repeat-request (ARQ) schemes and rateless codes. Here, we first study the application of a novel binary deterministic rateless (BDR) code. Then, we focus on the design of network coding for the wireless broadcasting system, which can significantly improve the system performance compared to traditional ARQ. Both the one-hop broadcasting system and a relay-aided broadcasting system areconsidered.

In the one-hop broadcasting system, we investigate the application of systematic BDR (SBDR) codes and instantaneously decodable network coding (IDNC). For the SBDR codes, we determine the number of encoded redundancy packets that guarantees high broadcast transmission efficiencies and simultaneous lowcomplexity. Moreover, with limited feedback the efficiency performance can be further improved. Then, we propose an improved network coding scheme that can asymptotically achieve the theoretical lower bound on transmission overhead for a sufficiently large number of information packets.

In the relay-aided system, we consider a scenario where the relay node operates in half duplex mode, and transmissions from the BS and the relay, respectively, are over orthogonal channels. Based on random network coding, a scheduling problem for the transmissions of redundancy packets from the BS and the relay is formulated. Two scenarios; namely instantaneous feedback after each redundancy packet, and feedback after multiple redundancy packets are investigated. We further extend the algorithms to multi-cell networks. Besides random network coding, IDNC based schemes are proposed as well. We show that significant improvements in transmission efficiency are obtained as compared to previously proposed ARQ and network-coding-based schemes.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2011. ix, 29 p.
Series
Trita-EE, ISSN 1653-5146 ; 2011:05
Keyword
wireless broadcasting, relay-aided system, systematic binary deterministic rateless codes, random network coding, instantaneously decodable network coding
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-40472 (URN)978-91-7501-082-3 (ISBN)
Presentation
2011-09-07, sal V3, KTH, Stockholm, 15:00 (English)
Opponent
Supervisors
Note
QC 20110907Available from: 2011-09-27 Created: 2011-09-15 Last updated: 2011-09-27Bibliographically approved

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Xiao, MingRasmussen, Lars Kildehöj

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