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URN etd-0407106-151422 Statistics This thesis had been viewed 2838 times. Download 934 times. Author Kuo-Ying Chang Author's Email Address No Public. Department Communication Engineering Year 2005 Semester 1 Degree Master Type of Document Master's Thesis Language English Page Count 45 Title DYNAMIC GUARD CHANNEL ALLOCATION SCHEME WITH ADAPTIVE BANDWIDTH DEGRADATION IN MULTIMEDIA MOBILE NETWORKS Keyword Dynamic gurad channel scheme Call admission control Call admission control Dynamic gurad channel scheme Abstract In the recent decades, the introduction and success of mobile communications highly change people’s life worldwide in communications. Further, the success of mobile communications also attracts a number of researches and developments on it.
With the introduction of CDMA technology in wireless mobile network, the mobile carrier can provide up to 2 Mbps data rate to support various multimedia applications. However, the characteristic of handoff in wireless network and the bandwidth requirement of multimedia applications make the network more complex. So how to provide a mobile network to support QoS provisioning by means of efficient and effective management for radio resources became a challenge work.
In this thesis, we study several papers on call admission control (CAC) and bandwidth allocation scheme in wireless networks and also proposed the dynamic guard channel scheme with bandwidth degradation to rate-adaptive connections based on the traffic characteristics. Nevertheless, compared with fixed guard channel scheme and dynamic guard channel scheme without rate-adaptive degradation, the proposed scheme provides better overall performances in terms of call blocking rate (CBR), call dropping rate (CDR), grade of service (GOS), and bandwidth utilization (BU) through extensive simulations.
Advisor Committee none - advisor
none - co-chair
none - co-chair
Files Date of Defense 2006-01-12 Date of Submission 2006-04-07