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  • Abstract - Hierarchy Schedule Sensing Protocol for CDMA Wireless Networks-Performance Study under Multipath, Multiuser Interference, and Collision-Capture Effect
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Hierarchy Schedule Sensing Protocol for CDMA Wireless Networks-Performance Study under Multipath, Multiuser Interference, and Collision-Capture Effect
March/April 2005 (vol. 4 no. 2)
pp. 178-188
This paper studies a multiple access control protocol, hierarchy schedule sensing protocol, for CDMA wireless data centric networks characterized by high terminal density in a small area. In particular, this paper focuses on the impact of packet collision with capture effect on performance of a network based on the protocol, where a common-coded permission frame beacon is used to schedule transmission requests to avoid collisions. To further reduce scheduling delay, hierarchical group-based coding is introduced to the scheme. The performance of such a network is analyzed considering packet collisions, capture effect, multipath-interference (MI), and multiuser interference (MUI) with the help of a Markovian chain model. The average packet collision rate with and without capture effect is explicitly derived. The performance of the protocol is compared with traditional receiver-based code protocol to shown that, despite its low complexity, it is a fairly robust multiple access control protocol featured by uniformly high throughput and low delay.

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Index Terms:
Multiple access control protocol, wireless network, CDMA, capture effect, multipath.
Citation:
Hsiao-Hwa Chen, Wee-Teck Tea, "Hierarchy Schedule Sensing Protocol for CDMA Wireless Networks-Performance Study under Multipath, Multiuser Interference, and Collision-Capture Effect," IEEE Transactions on Mobile Computing, vol. 4, no. 2, pp. 178-188, March-April 2005, doi:10.1109/TMC.2005.27
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