dc.contributor.advisor | Dong, Min | |
dc.contributor.author | Yang, Zilong | |
dc.date.accessioned | 2016-12-19T19:44:03Z | |
dc.date.accessioned | 2022-03-29T16:34:00Z | |
dc.date.available | 2016-12-19T19:44:03Z | |
dc.date.available | 2022-03-29T16:34:00Z | |
dc.date.issued | 2016-08-01 | |
dc.identifier.uri | https://hdl.handle.net/10155/703 | |
dc.description.abstract | In this work, we consider a multi-cluster amplified-and-forward (AF) relay interference
network and design relay beam matrix for each cluster to maximize the minimum
signal-to-interference-and-noise ratio (SINR) at destinations subject to the relay power
budget within each cluster. Both single and multiple source-destination (S-D) pair
scenarios are considered. We propose a beam matrix structured as a weighted sum
of two types of beam matrices: zero forcing (ZF) beam matrix for inter-cluster interference
suppression, and another beam matrix for beamforming gain maximization
within a cluster. Maximum ratio combing (MRC) and minimal mean square error
(MMSE) are chosen to design the second beam matrix in single and multiple S-D pair
scenarios, respectively. The optimal solution for each type of beam matrix is obtained
in closed form. We then obtain the optimal weights to each type of beam matrix by
transforming the max-min SINR problem and solving it via the SDR approach.
Compared with applying the direct SDR approach to the original problem, our
solution offers similar performance with significantly lower computational complexity.
In addition, our proposed structured beam matrix clearly reveals the power shift
between interference suppression among clusters and beamforming gain maximization
within the cluster as the distance among clusters or the size of clusters changes. | en |
dc.description.sponsorship | University of Ontario Institute of Technology | en |
dc.language.iso | en | en |
dc.subject | Relay beamforming | en |
dc.subject | Multi-cluster relay networks | en |
dc.subject | Relay interference | en |
dc.subject | Complexity | en |
dc.title | Cooperative relay beamforming design for multi-cluster relay interference networks | en |
dc.type | Thesis | en |
dc.degree.level | Master of Applied Science (MASc) | en |
dc.degree.discipline | Electrical and Computer Engineering | en |