Forward Link Performance of Combined Soft and Hard Handoff in Multimedia CDMA Systems
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概要
- 論文の詳細を見る
The soft handoff is widely adopted in code division multiple access (CDMA) systems for its many advantages mainly resulting from site diversity. However, in the forward link, other cell interference can be increased by soft handoff, decreasing system capacity. In future mobile systems, provision for the sufficient forward link capacity is very important since the forward link load is much higher than the reverse link load in mobile multimedia services such as Internet access. In this paper, we consider a combined handoff strategy in which voice services are provided with soft handoff whereas data services are supported with hard handoff. We analyze the effect of handoff method on the forward link performance. The performance measures we use are the outage probability of the bit energy to noise density ratio and the capacity based on the outage probability. As a result, we show that the combined handoff is very useful in CDMA cellular networks supporting both voice and data services simultaneously.
- 社団法人電子情報通信学会の論文
- 2002-07-01
著者
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CHOI Chong-Ho
School of Electrical Engineering and Computer Science, Seoul National University
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Kim Sung
School Of Dentistry Kyunghee University
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Choi Chong-ho
School Of Electrical Engineering And Computer Science Seoul National University
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Jeong Dong
School Of Electronic Engineering Inha University
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Kim Sung
School Of Electrical Engineering And Computer Science Seoul National University
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JEON Wha
School of Electrical Engineering and Computer Science, Seoul National University
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Kim Sung
School Of Computer Science And Engineering Chung-ang University
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Jeon Wha
School Of Electrical Engineering And Computer Science Seoul National University
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Jeong Dong
School Of Electronics And Information Engineering Hankuk University Of Foreign Studies
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Kim Sung
School Of Computer Sci. And Engineering Chung-ang Univ.
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Choi Chong-ho
School Of Electrical Engineering And Computer Science Asri Seoul National University
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Jeong Dong
School of Display Engineering, Hoseo University, Baebang-myun, Asan, Chungnam 336-795, Korea
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