Cell collaborative zones for 4G cellular systems

In this paper, we consider the multiple base station cooperative transmission, a new technology being developed to lift the interference limits on wireless network. In practice, the biggest challenge facing multiple base station collaboration is the stringent requirement of the high-speed backbone t...

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Bibliographic Details
Main Authors: Zhongding Lei, Chin, Francois P S, Quek, Tony Q S, Au, Edward K S
Format: Conference Proceeding
Language:English
Subjects:
Base stations
Collaboration
Fading
Gain
MIMO
Shadow mapping
Signal to noise ratio
Online Access:Request full text
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Summary:In this paper, we consider the multiple base station cooperative transmission, a new technology being developed to lift the interference limits on wireless network. In practice, the biggest challenge facing multiple base station collaboration is the stringent requirement of the high-speed backbone to enable information exchange, especially for large deployment. We address this backbone issue and propose to define a collaborative zone within each cell. Only those users within the collaborative zone will be served by multiple coordinated base stations. Whereas users outside the collaborative zone will be served by a single base station as in a conventional non-collaborative scheme. The criterion defining the collaborative zone is proposed and designed in such a way that the users outside the collaborative zone sacrifice only marginal potential collaboration gain in terms of achievable rates. Since the amount of information to be exchanged will be a square function of the number of users served by the collaborative base stations, the introduction of the collaborative zone can reduce the backhaul overhead significantly.
ISSN:2166-0077
2166-0077
DOI:10.1109/GLOCOMW.2010.5700418