Performance Analysis of Different Spreading Factors in Various Channel Conditions With Channel Estimation for Uplink Wcdma

Reyaz, T.; Burr, Alister G.

doi:10.1109/pimrc.2005.1651632

Cited by 2 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It provided merely voice services while the second generation (2G) added medium bit rate data services. GSM Recommendations for mobile communication to have access to multimedia capabilities and services similar to the qualities provided by a fixed network [2]. The wideband code division multiple access (WCDMA) concept was developed which could fulfill the needs of 3G.…”

Section: Introductionmentioning

confidence: 99%

Performance investigation modeling for modulation employable in WCDMA over AWGN fading channel

Bhadada

Mehta

2014

2014 2nd International Conference on Emerging Technology Trends in Electronics, Communication and Networking

View full text Add to dashboard Cite

Ever increasing demand for data transfer speed and consequently bandwidth poses new challenges. Digital modulation techniques have contributed a lot to increase the capacity, data rates and quality of network. WCDMA is a high potential technique being rapidly adopted by the industry. This paper presents a simulation technique to enable select better digital modulation scheme for WCDMA. The paper highlights the results of this simulation for BPSK, QPSK, 8-PSK modulation models over AWGN fading channel for WCDMA.Keyword: WCDMA, spread spectrum DSSS, spreading, despreading, AWGN, BER. I. BACKGROUNDThe fusion of mobility with communication has completely revolutionized everyday life with technology advancing from one generation to the next. First generation provided only voice services while the second bought in more facilities like fax, data and messaging. Hunger for more demanding services like multimedia became unquenchable giving rise to increased bit rate being the prime feature of third and next generations.Evolution of wireless began with wireless analog networks termed as first generation. It provided merely voice services while the second generation (2G) added medium bit rate data services. GSM and CDMA were the main 2G technologies. Applications like video calling, online shopping etc. began to emerge which 2G failed to cater, as it needed higher speed services. This resulted in evolution of 2.5G and 3G. 2.5G used GPRS and EDGE technologies to enhance the data capacity of GSM. With both voice and data traffic moving on the system, the need was felt to increase the data rates further. Then by use of sophisticated coding, the data rates could be increased to 384 kbps [1]. High data rate and spectral efficiency thus were main drives of 3G.

show abstract

Section: Introductionmentioning

confidence: 99%

Performance investigation modeling for modulation employable in WCDMA over AWGN fading channel

Bhadada

Mehta

2014

2014 2nd International Conference on Emerging Technology Trends in Electronics, Communication and Networking

View full text Add to dashboard Cite

show abstract

“…The results show that the choice of the best spread bandwidth depends greatly on radio propagation channel conditions. The performances of different spreading factors have been analyzed in various channel conditions in [7]. Computer simulations were performed for the Rake receiver employing the Wiener filter as a channel estimator.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of WCDMA System for LEO Satellite Channel

El-Mahdy¹,

Mahran²,

Ibrahim³

2009

International Conference on Aerospace Sciences and Aviation Tec

View full text Add to dashboard Cite

In a Low Earth Orbit (LEO) satellite mobile multimedia system, the multiple access scheme should be capable of supporting the necessary features that would facilitate the provision of multimedia services. Wideband Code Division Multiple Access (WCDMA) is an attractive multiple access scheme for mobile multimedia communications based on LEO satellites. In this paper, the performance of WCDMA system over LEO satellite channel is evaluated. The performance is measured in terms of the bit error probability. A mathematical derivation of the bit error probability is presented. A rake receiver with maximal ratio combining is considered in the analysis. The effect of the number of users and the processing gain on the performance of the WCDMA system is investigated.

show abstract

Performance Analysis of Different Spreading Factors in Various Channel Conditions With Channel Estimation for Uplink Wcdma

Cited by 2 publications

References 9 publications

Performance investigation modeling for modulation employable in WCDMA over AWGN fading channel

Performance investigation modeling for modulation employable in WCDMA over AWGN fading channel

Performance Analysis of WCDMA System for LEO Satellite Channel

Contact Info

Product

Resources

About