A CDM transmission scheme with cancellation technique for accumulated cross-correlation values

Author

Shimezawa, Kazuyuki ; Harada, Hiroshi ; Shirai, Hiroshi

Author_Institution

Graduate Sch. of Sci. & Eng., Chuo Univ., Tokyo, Japan

Volume

5

fYear

2003

fDate

6-9 Oct. 2003

Firstpage

3358

Abstract

We propose adding a code-division-multiplexing transmission scheme with a cyclic shifted-and-extended codes and many-valued modulation scheme to a conventional DSRC-based road vehicle communication system in order to realize seamless communication in high mobility environment. Then, cross-correlation values accumulate by a combination of polarity of transmission data in parallel channels, and the accumulated cross-correlation values make transmission performance to degrade. Therefore, we propose the CDM transmission scheme with a cancellation technique for the accumulated cross-correlation values. Moreover, we calculate transmission performances of the proposed scheme by computer simulations. As a result, the proposed scheme can realize high-quality data transmission in fast fading environment.

Keywords

code division multiplexing; correlation methods; cyclic codes; data communication; error statistics; modulation; road vehicles; telecommunication channels; CDM transmission scheme; DSRC-based road vehicle communication system; cancellation technique; code-division-multiplexing transmission scheme; cross-correlation values; cyclic shifted-and-extended codes; fast fading environment; high mobility environment; high-quality data transmission; many-valued modulation scheme; parallel channels; Autocorrelation; Automotive engineering; Computer simulation; Degradation; Diversity reception; Electronic mail; Modulation coding; OFDM; Propagation delay; Road vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th

ISSN

1090-3038

Print_ISBN

0-7803-7954-3

Type

conf

DOI

10.1109/VETECF.2003.1286308

Filename

1286308