Inband Relaying in Long Term Evolution-Advanced Networks

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.advisor Redana, Simone, Dr., Nokia Solutions and Networks, Germany Bou Saleh, Abdallah 2014-03-25T10:00:07Z 2014-03-25T10:00:07Z 2014
dc.identifier.isbn 978-952-60-5599-2 (electronic)
dc.identifier.isbn 978-952-60-5598-5 (printed)
dc.identifier.issn 1799-4942 (electronic)
dc.identifier.issn 1799-4934 (printed)
dc.identifier.issn 1799-4934 (ISSN-L)
dc.description.abstract The set of stringent requirements for 4G radio access networks has triggered the embodiment of new small low-power nodes, e.g. relay, Femto and Pico access nodes, as part of the network infrastructure. Various types of relay nodes are currently supported in IEEE 802.16m and 3GPP LTE-Advanced, e.g. inband Layer 2 or Layer 3 nodes and outband nodes, considering different functional capabilities and backhauling characteristics. In general, relay nodes are characterized by compact physical characteristics, low power consumption, a wireless backhaul link to the core network, and relaxed installation guidelines with respect to radiation and planning regulation. In specific, inband relay nodes, the matter of this study, are Layer 3 access nodes with time-multiplexed transmission and reception on their wireless backhaul and access links, which operate on the same frequency band. These characteristics impose serious challenges on one hand, but allow for significant improvements on the other hand. In this context, the deployment flexibility of relay nodes simplifies the network planning procedure and reduces deployment costs. On the other hand, low power transmission and limited antenna capabilities result in small relay cell coverage areas which will lead to load imbalances. Besides, multiplexing backhaul and access communications on different subframes implies the need for suitable two-hop resource allocation and scheduling. Further challenges are attributed to increased interference levels compared to macrocell deployments, as well as the introduction of a new interference type known as relay-to-relay interference resulting from the misalignment of access and backhaul link dedicated subframes at different relay nodes. The research towards this thesis has addressed these challenges within 3GPP LTE-Advanced context. A feasibility study of different relaying modes is provided and the performance of relay deployments is evaluated in different propagation environments. Thereafter, simple network planning techniques are proposed to alleviate the limitations of the inband backhaul link. Further, novel techniques are investigated to address resource allocation and scheduling, load balancing and interference coordination. The performance of proposed techniques along with the energy efficiency of relay nodes is evaluated. Results show in general significant gains and validate relaying as an efficient enhancement technology. en
dc.format.extent 98 + app. 106
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Aalto University en
dc.publisher Aalto-yliopisto fi
dc.relation.ispartofseries Aalto University publication series DOCTORAL DISSERTATIONS en
dc.relation.ispartofseries 32/2014
dc.relation.haspart [Publication 1]: A. Bou Saleh, C. Hausl, R. Kötter. Outage Behavior of Bidirectional Half-Duplex Relaying Schemes. In IEEE Information Theory Workshop ITW 2009, Taormina, Italy, pp. 50-54, October 2009.
dc.relation.haspart [Publication 2]: A. Bou Saleh, T. Riihonen, S. Redana, J. Hämäläinen, R. Wichman, B. Raaf. Performance of Amplify-and-Forward and Decode-and-Forward Relays in LTE-Advanced. In IEEE Vehicular Technology Conference VTC-Fall 2009, Anchorage, USA, pp. 1-5, September 2009.
dc.relation.haspart [Publication 3]: A. Bou Saleh, S. Redana, J. Hämäläinen, B. Raaf. On the Coverage Extension and Capacity Enhancement of Inband Relay Deployments in LTE-Advanced Networks. Journal of Electrical and Computer Engineering, Volume 2010, Special Issue LTE/LTE-Advanced Cellular Communication Networks", Article ID 894846, pp. 1-12, Vol. 2010, May 2010.
dc.relation.haspart [Publication 4]: A. Bou Saleh, Ö. Bulakci, J. Hämäläinen, S. Redana, B. Raaf. Analysis of the Impact of Site Planning on the Performance of Relay Deployments. IEEE Transactions on Vehicular Technology, pp. 3139 - 3150, Vol. 61, NO. 7, September 2012.
dc.relation.haspart [Publication 5]: A. Bou Saleh, Ö. Bulakci, Z. Ren, S. Redana, B. Raaf, J. Hämäläinen. Resource Sharing in Relay-enhanced 4G Networks. In European Wireless Conference 2011 - Sustainable Wireless Technologies, Vienna, Austria, pp. 1-8, April 2011.
dc.relation.haspart [Publication 6]: A. Bou Saleh, Ö. Bulakci, S. Redana, J. Hämäläinen. On cell range extension in LTE-Advanced Type 1 inband relay networks. Wireless Communications and Mobile Computing, June 2013, DOI: 10.1002/wcm.2377.
dc.relation.haspart [Publication 7]: Z. Ren, A. Bou Saleh, Ö. Bulakci, S. Redana, B. Raaf, J. Hämäläinen. Joint Interference Coordination and Relay Cell Expansion in LTE-Advanced Networks. In IEEE Wireless Communications Networking Conference WCNC 2012, Paris, France, pp. 2874-2878, April 2012.
dc.relation.haspart [Publication 8]: A. Bou Saleh, Ö. Bulakci, S. Redana, B. Raaf, J. Hämäläinen. A Divide-and-conquer Approach to Mitigate Relay-to-Relay Interference. In IEEE Personal, Indoor and Mobile Radio Communications PIMRC 2011, Toronto, Canada, pp. 1889-1893, September 2011.
dc.relation.haspart [Publication 9]: A. Bou Saleh, Ö. Bulakci, S. Redana, B. Raaf, J. Hämäläinen. Impact of Relay-to-Relay Interference on the Performance of LTE-Advanced Relay Networks. In 17. VDE ITG workshop on Mobile Communications, Osnabrück, Germany, pp. 1-6, May 2012.
dc.relation.haspart [Publication 10]: A. Bou Saleh, Ö. Bulakci, S. Redana, B. Raaf, J. Hämäläinen. Evaluating the Energy Efficiency of LTE-Advanced Relay and Picocell Deployments. In IEEE Wireless Communications Networking Conference WCNC 2012, Paris, France, pp. 2335-2340, April 2012.
dc.subject.other Electrical engineering en
dc.title Inband Relaying in Long Term Evolution-Advanced Networks en
dc.type G5 Artikkeliväitöskirja fi Sähkötekniikan korkeakoulu fi School of Electrical Engineering en
dc.contributor.department Tietoliikenne- ja tietoverkkotekniikan laitos fi
dc.contributor.department Department of Communications and Networking en
dc.subject.keyword inband relaying en
dc.subject.keyword network planning en
dc.subject.keyword resource allocation en
dc.subject.keyword interference coordination en
dc.subject.keyword load balancing en
dc.subject.keyword energy efficiency en
dc.subject.keyword performance evaluation en
dc.subject.keyword LTE-Advanced en
dc.identifier.urn URN:ISBN:978-952-60-5599-2
dc.type.dcmitype text en
dc.type.ontasot Doctoral dissertation (article-based) en
dc.type.ontasot Väitöskirja (artikkeli) fi
dc.contributor.supervisor Hämäläinen, Jyri, Prof., Aalto University, Department of Communications and Networking, Finland
dc.opn Lempiäinen, Jukka, Prof. (Tampere University of Technology, Finland)
dc.opn Garcia-Lozano, Mario, Prof., Universitat Politècnica de Catalunya, BarcelonaTech, Spain 2014-01-29
dc.rev Guvenc, Ismail, Prof., Florida International University, USA
dc.rev Garcia-Lozano, Mario, Prof., Universitat Politècnica de Catalunya, BarcelonaTech, Spain 2014-04-04

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