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Title: Adaptive limited feedback links for cooperative multi-antenna multicell networks
Authors: Özbek, Berna
Ruyet, Didier Le
Keywords: Average capacities
Cooperative networks
Intercell interference
Channel state information
Issue Date: 2014
Publisher: Springer Verlag
Source: Özbek, B., and Ruyet, D. L. (2014). Adaptive limited feedback links for cooperative multi-antenna multicell networks. Eurasip Journal on Wireless Communications and Networking, 2014. doi:10.1186/1687-1499-2014-193
Abstract: The overall performance of cooperative networks is quite sensitive to channel state information (CSI) of serving and interfering base stations (BSs) and affected strongly by quality of limited feedback links. In this paper, we propose two adaptive limited feedback strategies for intercell interference cancelation in multi-antenna multicell networks. The first proposed strategy is developed to improve average multicell capacity assuming a fixed rate feedback link. This algorithm is based on adaptation of the number of bits to quantize CSI of serving and interfering BSs according to transmitter power and location of the user in its own cell. The second proposed strategy is designed in a way to increase average capacity of cell-edge users assuming an adaptive rate feedback link. This algorithm is based on the idea of allocating more bits to quantize CSI of users at cell-edge regions while allocating less bits for users near the serving BS. We illustrate performance of the proposed feedback links for downlink cooperative multi-antenna multicell networks in wireless channels.
ISSN: 1687-1472
Appears in Collections:Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
OpenAIRE Collection / OpenAIRE Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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