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Three step Cooperative MIMO relaying
KTH, School of Information and Communication Technology (ICT), Communication Systems, CoS.
2005 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The Cooperative MIMO Relaying (CMIMOR) System is a relatively new topic that researches the possibility of benefiting from the capacity gains offered by a Multiple Input Multiple Output channel despite the physical limitations of the mobile phones.

This thesis investigates an enhancement to the CMIMOR network that aims for a reduction of the cost of implementation.  The main goal is to study the feasibility of the proposed Three-Hop CMIMOR Network, and evaluate it with respect to its original Two-Hop CMIMOR counterpart.

Both systems are presented and a comparison in terms of end to end throughput reveals that the two-hop system performs better.  The problem with the Three-Hop system appears to be that the resources are not allocated in an optimized manner.  To improve the performance some modifications are proposed, and the results prove that the proposed modifications produce increased capacity.  The increase in capacity is especially evident when a proper allocation of bandwidth or a good relay selection criteria are applied, allowing the Three-Hop CMIMOR network to perform as well (better for some cases) as the Two-HOP CMIMOR network.

Finally at the end of the study a brief cost analysis reveals that, in addition to the good performance of the proposed system, the cost with respect to throughput is less than that of the Two-Hop CMIMOR system.

Place, publisher, year, edition, pages
Trita-S3-RST, ISSN 1400-9137 ; 0511
National Category
Computer and Information Science
URN: urn:nbn:se:kth:diva-28077OAI: diva2:383925
Available from: 2011-03-10 Created: 2011-01-06 Last updated: 2011-03-10Bibliographically approved

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Nassif, Chafic
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