Enhanced robust wireless network QoS control applying adaptive modulation and macroscopic diversity combining techniques

Jong Moon Chung, Wun Cheol Jeong, Krishnaveni Ramasamy, Renukadevi Ramasamy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the proposed communication system and base station network topology apply a constraint-based optimal adaptive modulation algorithm and macroscopic diversity reception combining scheme to support enhanced robust wireless network quality of service (QoS) support for broadband reliable mobile data communication services. The research of this paper extends the adaptive modulation research of by two aspects. First, the lognormal shadowing channel characteristic which are common for mobile communication channels is included in addition to the Rayleigh fading characteristic. Second, a macroscopic selection diversity scheme is combined with the adaptive modulation topology to enhance the instantaneous BER and spectral efficiency performance. The results show that the optimal adaptive modulation control system combined with the macroscopic diversity technology enables QoS constraint-based services to be supported more reliably over a wider range of signal-to-noise ratio (SNR) conditions. Additionally, the results show that by applying the macroscopic diversity selection scheme, a significant improvement in the spectral efficiency is obtained. The analysis illustrates that the wireless data link utilization can be increased while the required instantaneous bit error rate (BER) can be supported. The macroscopic diversity combining scheme enables the adaptive modulation to provide more robust/reliable network QoS support under time varying channel conditions (i.e., as the SNR may fluctuate). As the number of combining diversity links increase, the minimum SNR limit that supports the instantaneous BER requirements is significantly lowered, thus making the wireless networking channel QoS and supportive data rate more robust/reliable.

Original languageEnglish
Title of host publication2004 1st IEEE Consumer Communications and Networking Conference, CCNC 2004; Consumer Networking
Subtitle of host publicationClosing the Digital Divide - Proceedings
Pages228-232
Number of pages5
Publication statusPublished - 2004 Jul 6
Event2004 1st IEEE Consumer Communications and Networking Conference, CCNC 2004; Consumer Networking: Closing the Digital Divide - Proceedings - Las Vegas, NV, United States
Duration: 2004 Jan 52004 Jan 8

Other

Other2004 1st IEEE Consumer Communications and Networking Conference, CCNC 2004; Consumer Networking: Closing the Digital Divide - Proceedings
CountryUnited States
CityLas Vegas, NV
Period04/1/504/1/8

Fingerprint

Adaptive modulation
Wireless networks
Quality of service
Bit error rate
Signal to noise ratio
Telecommunication links
Topology
Diversity reception
Rayleigh fading
Base stations
Communication systems
Control systems
Communication

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Chung, J. M., Jeong, W. C., Ramasamy, K., & Ramasamy, R. (2004). Enhanced robust wireless network QoS control applying adaptive modulation and macroscopic diversity combining techniques. In 2004 1st IEEE Consumer Communications and Networking Conference, CCNC 2004; Consumer Networking: Closing the Digital Divide - Proceedings (pp. 228-232)
Chung, Jong Moon ; Jeong, Wun Cheol ; Ramasamy, Krishnaveni ; Ramasamy, Renukadevi. / Enhanced robust wireless network QoS control applying adaptive modulation and macroscopic diversity combining techniques. 2004 1st IEEE Consumer Communications and Networking Conference, CCNC 2004; Consumer Networking: Closing the Digital Divide - Proceedings. 2004. pp. 228-232
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Chung, JM, Jeong, WC, Ramasamy, K & Ramasamy, R 2004, Enhanced robust wireless network QoS control applying adaptive modulation and macroscopic diversity combining techniques. in 2004 1st IEEE Consumer Communications and Networking Conference, CCNC 2004; Consumer Networking: Closing the Digital Divide - Proceedings. pp. 228-232, 2004 1st IEEE Consumer Communications and Networking Conference, CCNC 2004; Consumer Networking: Closing the Digital Divide - Proceedings, Las Vegas, NV, United States, 04/1/5.

Enhanced robust wireless network QoS control applying adaptive modulation and macroscopic diversity combining techniques. / Chung, Jong Moon; Jeong, Wun Cheol; Ramasamy, Krishnaveni; Ramasamy, Renukadevi.

2004 1st IEEE Consumer Communications and Networking Conference, CCNC 2004; Consumer Networking: Closing the Digital Divide - Proceedings. 2004. p. 228-232.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Chung JM, Jeong WC, Ramasamy K, Ramasamy R. Enhanced robust wireless network QoS control applying adaptive modulation and macroscopic diversity combining techniques. In 2004 1st IEEE Consumer Communications and Networking Conference, CCNC 2004; Consumer Networking: Closing the Digital Divide - Proceedings. 2004. p. 228-232