Adaptive PSAM in Cross-Layer Combining of AMC and ARQ

Author

Sun, Jun ; Yuan, Dongfeng ; Mathiopoulos, Takis

Author_Institution

Sch. of Inf. Sci. & Eng., Shandong Univ., Jinan

fYear

2007

fDate

20-21 Sept. 2007

Firstpage

125

Lastpage

128

Abstract

Different schemes about power arrangement and spacing allocation of pilot symbols in cross-layer design are investigated in this paper. The purpose is to maximize the average spectral efficiency at the physical layer accounting for meeting the target package loss probability at the data link layer. The parameters associated with channel state information in cross-layer structure are modified by introducing the channel estimation error. The adaptive spacing is determined according to the channel characteristics and the power is adaptive arranged between the information symbols and pilot symbols by maximizing the modified average spectral efficiency.

Keywords

adaptive codes; adaptive modulation; automatic repeat request; channel estimation; radio links; AMC; ARQ; adaptive PSAM; adaptive spacing; channel estimation error; channel state information; cross-layer combining; information symbols; pilot symbols; power arrangement; spacing allocation; Automatic repeat request; Channel estimation; Channel state information; Cross layer design; Fading; Information science; Modulation coding; Physical layer; Quality of service; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Cross Layer Design, 2007. IWCLD '07. International Workshop on

Conference_Location

Jinan

Print_ISBN

978-1-4244-1283-9

Electronic_ISBN

978-1-4244-1284-6

Type

conf

DOI

10.1109/IWCLD.2007.4379053

Filename

4379053