W-CDMA capacity and planning issues

Dehghan, Seyyed Mohammad Mehdi; Lister, David; Owen, R.; Jones, Phil

doi:10.1049/ecej:20000304

Cited by 37 publications

(11 citation statements)

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“…Results are given in Table VI, in terms of mean error and root-meansquare (RMS) error. The averaged noise rise [8] (given by…”

Section: Resultsmentioning

confidence: 99%

“…Specifically, [7] neglects SHO gains in required SIR and in transmit power rise, and does not take into account the effect of power headroom; besides, it assumes that all users are identical (same service class and multipath conditions). The analysis in [8] also assumes equal required SIRs for all users, does not model power limitations, and makes significant approximations. A general description of a simulation approach is given, but it does not specify how powers are calculated or how short-term effects are taken into account.…”

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confidence: 99%

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System-Level Analysis of Closed-Loop Power Control in the Uplink of DS-CDMA Cellular Networks

Mendo¹,

Hernando²

2007

IEEE Trans. Wireless Commun.

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Abstract-A system-level model for power control in the uplink of direct-sequence code-division multiple access (DS-CDMA) cellular networks is presented. The model takes into account the effects of the closed loop, namely average transmit power rise, power headroom, and variable soft hand-off gains, which are not considered in existing power control models. The power control problem is analyzed in this setting, and a number of properties are derived which generalize results from the classical model without closed-loop effects. Based on this analysis, an algorithm is given that determines required transmit powers taking into account these effects. This algorithm is a generalization of classical iterative algorithms without closed-loop effects. Finally, simulation results are presented to assess the validity of the approach.

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“…Results are given in Table VI, in terms of mean error and root-meansquare (RMS) error. The averaged noise rise [8] (given by…”

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

System-Level Analysis of Closed-Loop Power Control in the Uplink of DS-CDMA Cellular Networks

Mendo¹,

Hernando²

2007

IEEE Trans. Wireless Commun.

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“…The investigation into shadowing has so far assumed uncorrelated shadowing coefficients; however, in practice, a degree of correlation exists between each shadowing component where [30]. The study is now extended to incorporate as follows.…”

Section: G Shadowing Correlationmentioning

confidence: 99%

On the Analysis of Switched-Beam Antennas for the W-CDMA Downlink

Allen

Beach²

2004

IEEE Trans. Veh. Technol.

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“…Once the system has reached the desired convergence in terms of blocking probability (i.e. the number of dropped calls in the actual iteration converges to the average of all iterations), statistics and pictures describing the system are generated, since it is assumed that enough snapshots have been run in order to give a good statistical representation [2].…”

Section: Monte Carlo Simulationmentioning

confidence: 99%

“…This section presents UMTS radio network planning including capacity and coverage planning [2,3]. In the dimensioning phase, the number of BS sites is estimated on the basis of the operator's requirements for coverage, capacity and quality of service.…”

Section: Introductionmentioning

confidence: 99%

Planning the Base Station Layout in UMTS Urban Scenarios: A Simulation Approach to Coverage and Capacity Estimation

Zola¹,

Barcelo²

2004

Telecommunications and Networking - ICT 2004

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Abstract. This paper analyzes the performance of a base station layout for a UMTS network in a densely populated city. The study is carried out using snapshot simulations of an actual city (Barcelona, Spain) with specific traffic and propagation profiles. A first layout is proposed in order to guarantee good coverage with a minimum number of base stations. This layout is approached taking into account the link budget analytical calculations and the first simulation results for a single-cell environment. A second layout is then presented in an attempt to solve the problems that arise in the first (e.g. shadows, blind zones, etc.). This is carried out by finely tuning parameters from the first layout, adding new base stations and changing the locations of the existing ones.

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W-CDMA capacity and planning issues

Cited by 37 publications

References 0 publications

System-Level Analysis of Closed-Loop Power Control in the Uplink of DS-CDMA Cellular Networks

System-Level Analysis of Closed-Loop Power Control in the Uplink of DS-CDMA Cellular Networks

On the Analysis of Switched-Beam Antennas for the W-CDMA Downlink

Planning the Base Station Layout in UMTS Urban Scenarios: A Simulation Approach to Coverage and Capacity Estimation

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