Impact of radio resource allocation policies on the TD-CDMA system performance: evaluation of major critical parameters

Calin, Doru; Areny, M.

doi:10.1109/49.957301

Cited by 16 publications

(1 citation statement)

References 7 publications

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“…Simple strategies, such as in [8] attempt to minimize received interference by relying on intuitive rules that aim at decreasing the number of interferers. Unfortunately, the identity of interferers has a significant importance on the performance of various sessions.…”

Section: Introductionmentioning

confidence: 99%

Radio resource management for downlink multimedia services in TDMA/CDMA interference-limited cellular networks

Elshabrawy

Le‐Ngoc

2007

Wireless Pers Commun

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This paper addresses the radio resource management (RRM) structure and efficient dynamic capacity allocation techniques for hybrid TDMA/ CDMA mobile cellular networks to support downlink multimedia services with different quality-of-service (QoS) requirements in an interference-limited environment. Various burst-driven timeslot-code assignment algorithms suitable for distributed processing are proposed to achieve high system capacity in terms of b/s/ Hz/cell while maintaining a required percentage of satisfied users. Simulation results for various traffic scenarios are used for performance evaluation and comparison. The impacts of bursty WWW traffic on speech performance are also examined. It is shown that interference information can be used in timeslot-code assignment to significantly improve the system performance. Based on the received interference information, the minimum instantaneous power (MIP) algorithm aims to assign timeslot-codes that minimize the required transmitted power to maintain a target SINR. The MIP can provide an increase of 23% in system capacity. By considering to reduce both potentially received and ge-

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Section: Introductionmentioning

confidence: 99%

Radio resource management for downlink multimedia services in TDMA/CDMA interference-limited cellular networks

Elshabrawy

Le‐Ngoc

2007

Wireless Pers Commun

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Distributed timeslot allocation with crossed slots in CDMA‐TDD systems

Sung

Lee

2009

Wireless Communications

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Code division multiple access system with time division duplex (CDMA‐TDD) is a promising solution to cope with traffic asymmetry of downlink (DL) and uplink (UL) in multimedia services. When a rate of asymmetry is different in each cell, CDMA‐TDD system may employ crossed slots, where a timeslot is used for different links in cells. However, it may suffer from base station (BS)‐to‐BS and mobile station (MS)‐to‐MS interference problem. Zone division scheme is an efficient way to tackle the crossed slot interference by dividing a cell into inner and outer zones and restricting communication in crossed slots only to inner zone. In this paper, we propose distributed crossed slot resource allocation with zone division in multi‐cell CDMA‐TDD system. Two conditions for crossed slot resource allocation are defined and the bound on the size of inner zone is analyzed mathematically based on the conditions. Relationship between the capacity of crossed slot and the size of inner zone is also analyzed. Then, numerical results of the mathematical analysis are presented; showing that the proposed crossed slot allocation is effective for traffic asymmetry problem. Copyright © 2009 John Wiley & Sons, Ltd.

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Inhibit Cross Time Slot Interference Research in TD-SCDMA System

Yang

et al. 2011

Communications in Computer and Information Science

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Impact of radio resource allocation policies on the TD-CDMA system performance: evaluation of major critical parameters

Cited by 16 publications

References 7 publications

Radio resource management for downlink multimedia services in TDMA/CDMA interference-limited cellular networks

Radio resource management for downlink multimedia services in TDMA/CDMA interference-limited cellular networks

Distributed timeslot allocation with crossed slots in CDMA‐TDD systems

Inhibit Cross Time Slot Interference Research in TD-SCDMA System

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