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Efficient network coding for wireless broadcasting
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: 0000-0002-7926-5081
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-7182-9543
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2010 (English)In: IEEE Wireless Communications and Networking Conference, WCNC, 2010Conference paper, Published paper (Refereed)
Abstract [en]

It has been shown in the literature that network coding can improve the transmission efficiency of wireless broadcasting as compared to traditional ARQ schemes. In this paper, 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 blocks. The proposed scheme makes use of an index allocation algorithm that distributes information blocks that have been erased during transmission into a minimum number of encoding sets , where each set represents the erased blocks to be jointly network encoded and retransmitted. Numerical results show that the proposed scheme enables higher transmission efficiencies than traditional ARQ, and previously proposed networks coding schemes for wireless broadcasting.

Place, publisher, year, edition, pages
2010.
Keyword [en]
Allocation algorithm, Coding scheme, Information blocks, Lower bounds, Network coding, Numerical results, Transmission efficiency, Wireless broadcasting, Broadcasting, Information theory, Numerical analysis, Wireless telecommunication systems, Wireless networks
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-41479DOI: 10.1109/WCNC.2010.5506109ISI: 000299203100014Scopus ID: 2-s2.0-77955032349ISBN: 978-1-4244-6396-1 (print)OAI: oai:DiVA.org:kth-41479DiVA: diva2:443979
Conference
IEEE Wireless Communications and Networking Conference 2010, WCNC 2010; Sydney, NSW; 18 April 2010 through 21 April 2010
Note

QC 20110927

Available from: 2011-09-27 Created: 2011-09-27 Last updated: 2012-09-05Bibliographically 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, MingSkoglund, MikaelKildehöj Rasmussen, Lars

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