Capacity reduction of WCDMA downlink in the presence of interference from adjacent narrow-band system

Heiska, Kari; Posti, Harri; Muszynski, Peter; Aikio, P.; Numminen, Jussi; Hämäläinen, Matti

doi:10.1109/25.992066

Cited by 24 publications

(8 citation statements)

References 7 publications

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“…The third generation supports broadband voice, data and multimedia services. Performance analysis of multi-service 3G networks plays a major role for mobile network providers, because of the W-CDMA technique used in these systems, which leads to an interference limited systems with a dynamic cell capacity and load dependent cell coverage (Smida et al 2002;Heiska et al 2002). Performance, reliability modeling and evaluation plays an important role in the design, development, testing, and maintenance of many complex systems in different applications such as: communication systems, manufacturing systems, computer networks and many other.…”

Section: Application Of Mosel-2 In the Literaturementioning

confidence: 99%

Application Of MOSEL-2 Language In Performance And Modeling Of Cellular Wireless Networks

Zreikat¹

2012

Shaping Reality Through Simulation - Edited By: Klaus G. Troitzsch, Michael Möhring, Ulf Lotzmann

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Today's cellular wireless networks must meet increasing challenges of handling a larger demand for service without a loss of quality, by maximizing the spectral efficiency of the network. Therefore, performance evaluation and modeling of cellular wireless networks is considered to be an important issue to overcome the problem of limited resources of the network. MOSEL-2 (MOdelling Specification and Evaluation Language) offers the ability to evaluate complex systems in a straight, simple and very friendly environment. The old version of MOSEL offers only performance evaluation of complex systems with exponential distribution. However, by the new version of MOSEL (i.e. MOSEL2) with new constructs, it is possible to handle other behaviors with non-exponential distribution. In this paper, the application of MOSEL-2 in cellular wireless networks with mix service is presented. The main objective of the call admission control algorithm and the analysis is to obtain lower handover blocking probability over the new call blocking probability for both voice and data connections, which leads to minimum grade-of-service (i.e. < 0.01) over the whole cell. The numerical analysis of the suggested model with the associated interesting performance measures proves the effectiveness of this simulation in describing and solving this type of systems.

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Section: Application Of Mosel-2 In the Literaturementioning

confidence: 99%

Application Of MOSEL-2 Language In Performance And Modeling Of Cellular Wireless Networks

Zreikat¹

2012

Shaping Reality Through Simulation - Edited By: Klaus G. Troitzsch, Michael Möhring, Ulf Lotzmann

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“…i Kari heiska et al [3] has presented the same type of work with mixed multirate services, taking all the parameter are same. Fig 4 shows the comparison with K. heiska work with the present study.…”

Section: Servicementioning

confidence: 99%

“…The capacity has analyzed for both perfect and imperfect power control with the given set of quality of services requirement and for varying spreading factors [2]. K. heiska [3] presented analytical model for the power control based on signal to interference ratio (SIR) to the evaluation of capacity reduction in the WCDMA system in the presence of narrowband, interfering base stations at the frequency band were presented and the result shows that capacity reduction can be decreased by the appropriate mobile station design or by using a suitable radio network for both uplink and downlink. The forward link capacity of CDMA system with mixed multirate services was studied in [4].…”

Section: Introductionmentioning

confidence: 99%

Capacity analysis of WCDMA in forward link FDD mode system

Khan

Singh

Mian

2006

Proceedings of the 3rd International Conference on Mobile Technology, Applications &Amp; Systems - Mobility '06

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Present paper deal with the analytical treatment for the forward link (base station to mobile station) erlarg capacity of the 3rd Generation CDMA based system known as WCDMA along with the different services of data rate in multipath fading channel. The erlarg capacity of the system is calculated in term of required power at the base station supports number of user in a active cell. Forward link capacity depends on the DL transmit (Tx) power at the base station in a active cell. By introducing variable orthogonality factor, transmitter antenna gain and voice activity, we analyzed the required base station power when the number of users in a active cell work simultaneously in a multirate scenario at downlink FDD mode of WCDMA. The result in this paper can be applied to overall system design of WCDMA system with voice, data and multimedia services in the future mobile communications systems.

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“…Several studies have been proposed for analysing ACI in CDMA systems [2][3][4][5][6]. In [1], uplink capacity loss between two cellular systems operated by two different operators was analysed.…”

Section: Introductionmentioning

confidence: 99%

“…In [5], the effect of the ACI on the capacity and the cell radius of the victim system has been studied. In [6], the performance of the WCDMA downlink has been studied assuming that there are narrow band interference sources at the adjacent band frequencies.…”

Section: Introductionmentioning

confidence: 99%

WCDMA multiservice uplink capacity of highways cigar-shaped microcells with adjacent channel interference

Ahmed

Ramón

2011

Eur. Trans. Telecomms.

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The multiservice uplink capacity and the interference (intracellular and intercellular) statistics (mean and variance) of the sectors of the cigar-shaped wide band code division multiple access microcell are studied, taking into account the impact of the adjacent channel interference. A model of five microcells (10 sectors) is used in the analysis. The two-slope propagation loss model with lognormal shadowing is used in the analysis. The capacity and the interference statistics of the microcell are studied for different values of the distance between the base station of the two systems (system under study and the system using the adjacent channel). It is noted that for a distance between the base stations of both systems of 100 m, the capacity reduction due to the adjacent channel interference is lower than 3.4% (for data service). For collocated systems, capacity reduction is negligible. It is noticed that increasing the adjacent channel leakage power ratio from 30 to 40 dB will increase the sector uplink capacity by only 3%.

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Capacity reduction of WCDMA downlink in the presence of interference from adjacent narrow-band system

Cited by 24 publications

References 7 publications

Application Of MOSEL-2 Language In Performance And Modeling Of Cellular Wireless Networks

Application Of MOSEL-2 Language In Performance And Modeling Of Cellular Wireless Networks

Capacity analysis of WCDMA in forward link FDD mode system

WCDMA multiservice uplink capacity of highways cigar-shaped microcells with adjacent channel interference

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