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A Prioritized call Admission for supporting voice Activated/Controlled Services in Cellular CDMA Systems  

위성철 (한양대학교 이동통신망연구실)
김동우 (한양대학교 전자컴퓨터학부)
Publication Information
The Journal of the Acoustical Society of Korea / v.22, no.3, 2003 , pp. 242-249 More about this Journal
Abstract
When special voice control application services (VCS) such as voice-controlled web browsing or voice-controlled stock transactions are introduced in cellular systems, a channel quality better than that for ordinary voice communications service (OVS) is necessary in order to keep a suitable grade of VCS. To avoid ai. congestion, calls are normally admitted if there exists a channel-processing resource not occupied by other calls in the base as well as the interference level at the receiver is not higher than a predefined threshold. The threshold is usually 10㏈ noise-rise over the background noise level for voice communications service. When the base admits VCS attempts in exactly the same manner as it handles OVS calls. the same fraction of those will be not successful in taking the channel and then blocked. If the same noise-rise threshold is used as 10 ㏈, however, the admitted VCS calls might suffer from bad channel qualify and finally be dropped. From the user's point of view, the forced termination of ongoing calls is significantly undesirable than blocking new call attempts. When using a lower noise-rise threshold for VCS. on the other hand, the blocking probability of VCS gets higher than that of OVS. In this paper, a call admission policy that gives a priority to VCS is considered in order to reduce the blocking probability and keep an adequate channel quality.
Keywords
Voice-controlled service; Call admission control;
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  • Reference
1 Efficient interactive call admission control in power-controlled mobile systems /
[ D.Kim ] / IEEE Trans. Veh. Technol.   ScienceOn
2 Fairness in wireless microcellular networks /
[ X.Lagrange;B.Jabbari ] / IEEE Trans. Veh.Technol.   ScienceOn
3 Prioritized channel assignment in a cellular radio network /
[ S.H.Oh;D.W.Tcha ] / IEEE Trans. Commun.   ScienceOn
4 Other-cell interference in cellular power-controlled CDMA /
[ A.J.Viterbi;A.M.Viterbi;E.Zehavi ] / IEEE Trans. Commun.   ScienceOn
5 Erlang capacity of a power controlled CDMA system /
[ A.M.Viterbi;A.J.Viterbi ] / IEEE J. Select. Areas   ScienceOn
6 Queuing priority channel assignment strategies for hand-odd and initial access for a PCS network /
[ Y.B.Lin;S.Mohan;A.Noerpel ] / IEEE Trans. Veh. Technol.   ScienceOn
7 PCS channel assignment strategies for hand-off and initial access /
[ Y.B.Lin;S.Mohan;A.Noerpel ] / IEEE Personal Commun. 3rd Quarter
8 On the capacity of a cellular CDMA system /
[ K.J.Gilhousen;I.M.Jacobs;R.Padovani;A.J.Viterbi;l.A.Weaver;C.E.Wheatly ] / IEEE Trans. Veh. Technol.   ScienceOn
9 Mobile station-base station compatibility standard for dual-mode wideband spread spectrum cellular system /
[] / EIA/TIA IS-95
10 Threshold priority policy for channel assignment in cellular networks /
[ B.Gavish;S.Sridhar ] / IEEE Trans, Computers   ScienceOn
11 /
[ W.Feller ] / An Introduction to Probability Theory and its Applications(2nd ed.)
12 Traffic model and performance analysis for cellular mobile radio telephone systems with prioritized and non-prioritized handoff procedures /
[ D.Hong;S.S.Rappaort ] / IEEE Trans. Veh. Technol.   ScienceOn
13 Performance analysis of mobile cellular radio system with priority reservation handoff procedures /
[ Q.A.Zeng;K.Mukumoto;A.Fukuda ] / Proceedings of VTC '94
14 Queuing-blocking system with two arrival streams and guard channels /
[ R.A.Guerin ] / IEEE Trans. Commun.   ScienceOn
15 Performance of personal portable radio telephone systems with and without guard channels /
[ C.H.Yoon;C.K.Un ] / IEEE J.Select. Areas
16 Channel occupancy time distribution in a cellular radio system /
[ R.A.Guerin ] / IEEE Trans. Veh. Technol.
17 Analysis of a cut-of priority cellular radio system with finite queuing and reneging/dropping /
[ C.J.Chang;T.T.Su;Y.Y.Chiang ] / IEEE/ACM Trans. Networkng   ScienceOn
18 Capacity design and performance of call admission control in cellular CDMA systems /
[ Y.Ishikawa;N.Umeda ] / IEEE J. Select. Areas   ScienceOn