Adaptive processing gain data with space diversity and truncated ARQ in presence of soft handoff in cellular CDMA

Author

Das, Dipta ; Kundu, Sumit

Author_Institution

Dept. of Electron. & Commun. Engg, Dr. B.C. Roy Eng. Coll., Durgapur

fYear

2008

fDate

19-21 Nov. 2008

Firstpage

1

Lastpage

6

Abstract

An adaptive data transmission scheme based on variable spreading gain (VSG) is studied in CDMA network in presence of soft handoff and space diversity. The processing gain is varied according to traffic intensity meeting a requirement on bit error rate (BER) at the output of a space diversity system provided by antenna array. Truncated automatic repeat request (T-ARQ) is used in link layer to further improve the performance. The joint impact of soft handoff and space diversity on processing gain adaptation is studied. The overall performance improvement due to VSG based transmission in presence of soft handoff and space diversity at physical layer and T-ARQ at link layer is evaluated. A variable packet size scheme is also studied to meet packet loss constraint.

Keywords

antenna arrays; automatic repeat request; cellular radio; code division multiple access; diversity reception; error statistics; telecommunication traffic; BER; adaptive data transmission scheme; adaptive processing gain; antenna array; automatic repeat request; bit error rate; cellular CDMA; soft handoff mechanism; space diversity; traffic intensity; truncated ARQ; variable spreading gain; Adaptive arrays; Antenna arrays; Automatic repeat request; Data communication; Diversity reception; Gain; Multiaccess communication; Physical layer; Quality of service; Throughput; Adaptive systems; soft handoff; space diversity; variable spreading gain;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2008 - 2008 IEEE Region 10 Conference

Conference_Location

Hyderabad

Print_ISBN

978-1-4244-2408-5

Electronic_ISBN

978-1-4244-2409-2

Type

conf

DOI

10.1109/TENCON.2008.4766455

Filename

4766455