This paper analyzes the behavior of two time-code division architectures serving voice and data applications on the uplink of a cellular system. Both solutions attribute speech users one code over a time slot, whereas data users are granted several codes over the same time slot or a single code over several time slots. Call admission control is performed by a channel assignment algorithm which dynamically attributes resources if specified levels of transmission quality are met. The blocking probability of the two classes of users is determined, and it is demonstrated that the multicode T/CDMA approach performs better than the multislot solution and than a pure CDMA system.
Performance evaluation of an interference based admission control scheme in T/CDMA systems with voice and data users / Casoni, M.; Immovilli, G.; Merani, M. L.. - (2001), pp. 116-121. (Intervento presentato al convegno Proceedings - 2001 International Conference on Third Generation Wireless and Beyond tenutosi a San Francisco, CA, usa nel 2001).
Performance evaluation of an interference based admission control scheme in T/CDMA systems with voice and data users
Casoni M.;Immovilli G.;Merani M. L.
2001
Abstract
This paper analyzes the behavior of two time-code division architectures serving voice and data applications on the uplink of a cellular system. Both solutions attribute speech users one code over a time slot, whereas data users are granted several codes over the same time slot or a single code over several time slots. Call admission control is performed by a channel assignment algorithm which dynamically attributes resources if specified levels of transmission quality are met. The blocking probability of the two classes of users is determined, and it is demonstrated that the multicode T/CDMA approach performs better than the multislot solution and than a pure CDMA system.
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