Adaptive Transmission Scheme Based on Rician Channel k-factor for EGPRS Systems

Author

Juang, Rong-Terng ; Lin, Hsin-Piao ; Tseng, Ming-Jeng

Author_Institution

Inst. of Comput. & Commun., Nat. Taipei Univ. of Technol.

fYear

2005

fDate

23-28 Oct. 2005

Firstpage

10

Lastpage

10

Abstract

To utilize the spectrum efficiently, nine modulation and coding schemes had been specified in the EGPRS standard. This paper proposes a new closed-loop link adaptation by selecting the transmission mode according to the Rician channel k-factor. The proposed link adaptation incorporates only three identical modulated schemes due to the considerations of hardware complexity and implementation feasibility. Applying the proposed method to a real channel measured at urban Taipei city, the simulation results show that the adaptive scheme outperforms the fixed mode transmission by 58% while the block error rate is maintained below 10^-2

Keywords

Rician channels; adaptive codes; adaptive modulation; channel coding; modulation coding; packet radio networks; EGPRS system; Rician channel k-factor; adaptive transmission scheme; block error rate; closed-loop link adaptation; enhanced general packet radio service; modulation-coding scheme; AWGN; Cities and towns; Communication standards; Data communication; Error analysis; GSM; Ground penetrating radar; Hardware; Modulation coding; Rician channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Autonomic and Autonomous Systems and International Conference on Networking and Services, 2005. ICAS-ICNS 2005. Joint International Conference on

Conference_Location

Papeete, Tahiti

Print_ISBN

0-7695-2450-8

Type

conf

DOI

10.1109/ICAS-ICNS.2005.15

Filename

1559861