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基于緩存的語(yǔ)音/數(shù)據(jù)呼叫無(wú)線接入控制算法

劉亞偉,  荊濤,  盧燕飛,  馮玉珉

劉亞偉, 荊濤, 盧燕飛, 馮玉珉. 基于緩存的語(yǔ)音/數(shù)據(jù)呼叫無(wú)線接入控制算法[J]. 電子與信息學(xué)報(bào), 2006, 28(9): 1654-1658.
引用本文: 劉亞偉, 荊濤, 盧燕飛, 馮玉珉. 基于緩存的語(yǔ)音/數(shù)據(jù)呼叫無(wú)線接入控制算法[J]. 電子與信息學(xué)報(bào), 2006, 28(9): 1654-1658.
Liu Ya-wei, Jing Tao, Lu Yan-fei, Feng Yu-min. A Novel Voice / Data Call Admission Control Algorithm Based on Call Buffer in Wireless Networks[J]. Journal of Electronics & Information Technology, 2006, 28(9): 1654-1658.
Citation: Liu Ya-wei, Jing Tao, Lu Yan-fei, Feng Yu-min. A Novel Voice / Data Call Admission Control Algorithm Based on Call Buffer in Wireless Networks[J]. Journal of Electronics & Information Technology, 2006, 28(9): 1654-1658.

基于緩存的語(yǔ)音/數(shù)據(jù)呼叫無(wú)線接入控制算法

A Novel Voice / Data Call Admission Control Algorithm Based on Call Buffer in Wireless Networks

  • 摘要: 該文提出了一種新的無(wú)線網(wǎng)絡(luò)中語(yǔ)音/ 數(shù)據(jù)的呼叫接入控制算法(DTQ-VBR算法)，設(shè)置資源預(yù)留的雙重門限及呼叫緩存，兼顧數(shù)據(jù)業(yè)務(wù)的VBR特性，動(dòng)態(tài)改變其服務(wù)帶寬，并利用三維馬氏鏈對(duì)其進(jìn)行性能分析。大量的仿真實(shí)驗(yàn)表明，與DTR-Q、 DTBR算法相比，該文算法的平均信道利用率、呼叫強(qiáng)拆率及阻塞率等性能具有明顯的提高。
    Abstract: A novel voice / data call admission control algorithm based on call buffer in wireless networks is presented in this paper, which is charactered by dual thresholds with queueing for Variable Bit-Rate Data Traffic call ( DTQ-VBR ). The algorithm gives attention to the VBR character of data traffic and can adapt its service bandwidth through different settings of the thresholds and the call buffer size. Theoretical performance analysis is made by using three dimensions Markovian chain, and it is also shown that compared with DTR-Q and DTBR algorithm, the performances of the presented algorithm such as average channel utility, call dropping probability and block probability can be improved significantly according to a number of simulations.
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  • Epstein B, Schwartz M. Reservation strategies for multimediatraffic in a wireless environment[A][J].1995 IEEE the 45'Vehicular Technology Conference[C], Chicago, Illinois, USA,July.1995, Vol.l:165-169[2]Li Z L, Li B, Li B, et al.. Performance analysis of bandwidthallocations for multi-services mobile wireless cellularnetworks[A]. 2003 IEEE Wireless Communications andNetworking Conference (WCNC 2003)[C], New Orleans, LA,USA, March 2003, Vo1.2:1072-1077.[3]Haung Y R, Lin Y B, Ho J M. Performance analysis forvoice/data integration on a finite-buffer mobile system[J]. IEEETrians. on Tcehicnlar Technology，2000, 49(2):367-378.[4]Li B, Li Z L, Bo L, et al. Call admission control for voice/dataintegrated cellular networks: performance analysis andcomparative study[J].IEEE J on Selected Areas.Communi-nations.2004, 22(4):706-718[5]Li丫Li B, Zhang Z S, et al.. Performance analysis of adual-threshold reservation (DTR) scheme for voice/dataintegrated mobile wireless networks[A]. 2000 IEEE WirelessCommunications and Networking Conference (WCNC 2000)[C],Chicago, Illinois, USA, Sept. 2003, Vol.l:258-262.[6]Wu Hailiang, Li Lizhong, Li Bin, et al.. On handoff performancefor an integrated voice/data cellular system[A]. The 13th IEEEInternational Symposium on Personal, Indoor and Mobile RadioCommunications(PIMRC'2002) [C], Lisbon, Portugal, Sept. 2002MX1.5:2180-2184.[7]柳金甫，李學(xué)偉.應(yīng)用隨機(jī)過(guò)程[M].北京:中國(guó)鐵道出版社，2000:86-R7
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  • 收稿日期:  2005-01-06
  • 修回日期:  2005-07-14
  • 刊出日期:  2006-09-19

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