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Title: Improved successive stream selection with quantized channel in heterogeneous networks
Authors: Aycan, Esra
Özbek, Berna
Le Ruyet, Didier
Keywords: Distortion metrics
Heterogeneous networks
Quantized channel
Stream selection
Channel state information
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: Aycan, E., Özbek, B., and Le Ruyet, D.(2015, August 25-28). Improved successive stream selection with quantized channel in heterogeneous networks. Paper presented at the 12th International Symposium on Wireless Communication Systems, ISWCS 2015. doi:10.1109/ISWCS.2015.7454418
Abstract: This paper focuses on different distortion metrics in order to analyze the influence of the imperfect channel state information (CSI) on the improved successive stream selection algorithm that manages the interference in a heterogeneous network. The presented approach initially selects the streams from the user of the pico cell, continuing with the strongest streams among the remaining streams that increase the sum rate and satisfy the constraint that at least one stream is selected from each user. In order to reduce the interference, the channel matrices of the remaining streams are projected orthogonally to the virtual transmit and receive channels of the selected stream. The impact of the quantization distortion on the precoding and postcoding design is examined. The performance of two distortion metrics which are the Chordal distance and the Euclidean distance are compared for different number of quantization bits. The performance evaluations are obtained by considering different locations of small cells with respect to the macro cell.
Description: 12th International Symposium on Wireless Communication Systems, ISWCS 2015; Brussels; Belgium; 25 August 2015 through 28 August 2015
ISBN: 9781467365406
Appears in Collections:Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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