Capacity Estimation of Forward Link in CDMA Systems Supporting High Data-Rate Service
نویسندگان
چکیده
The capacity analysis of CDMA forward link is required to allocate high data-rate users. To solve this problem, we analyze the capacity of the CDMA forward link based on optimum power control. In a multi-cell environment, the intracell interference and intercell interference are derived. To show the capacity impact of high data-rate users, we introduce a location dependent factor, which is the ratio of intercell interference to intracell interference. Considering the location dependent factor, we propose a coordinated allocation scheme that can be used to allocate high data-rate users in sectorized cells. As a result, we show the capacity impact of high data-rate users according to location variations. The outage probability can be decreased when the coordinated allocation scheme is applied. key words: CDMA, resource allocation, high data-rate service,
منابع مشابه
Forward link capacity in multi-service DS-CDMA systems
Rights ©2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Abstract — In this paper the capacity of the forward l...
متن کاملCapacity Estimation in Multiple-Chip-Rate DS/CDMA Systems Supporting Multimedia Services
This paper is concerned with capacity estimation in multiple-chip-rate (MCR) DS/CDMA systems supporting multimedia services with different information rates and quality requirements. Considering both power spectral density (PSD) over a radio frequency (RF) band and the effect of RF input filtering on the receiver, capacity that satisfies the requirement of the bit energy-to-interference PSD rat...
متن کاملForward-link capacity of a DS/CDMA system with mixed multirate sources
Some studies have been done on capacity of a code division multiple access (CDMA) system with mixed multirate sources. However, a vast majority of these studies have concentrated on the reverse link. This trend comes from the fact that the capacity of a CDMA system is reverse-link limited. However, forward link can be a limiting link because emerging data services are likely to require higher d...
متن کاملSystem Design Tradeoff for Supporting Soft Handoff for Packet Data Calls using cdma2000 Cellular Simulator
The 2G CDMA IS-95A cellular networks have been deployed for almost 8 years. Although the system design rules and operating procedures for voice services (i.e., IS-95A services) are well established and understood, with the launch of cdma2000 1x high-rate data service worldwide in year 2002, these rules and procedures need to be re-examined. We have built a complete 3G cdma2000 1x cellular simul...
متن کاملFuture Broadband Wireless Access Seamlessly Supporting Cellular and Hot-spot Environments
1. Introduction In order to offer higher data-rate communication services above 2 Mbps in cellular systems, High-Speed Downlink Packet Access (HSDPA) is currently under discussion in the 3rd Generation Partnership Project (3GPP) based on the W-CDMA air interface [1]. HSDPA contains such techniques as adaptive modulation and channel coding (AMC) in accordance with radio link conditions (fast lin...
متن کامل