Supporting rate guarantee and fair access for bursty data traffic in W-CDMA

Author

Kam, Anthony C. ; Minn, Thit ; Siu, Kai-Yeung

Author_Institution

Sycamore Networks, Chelmsford, MA, USA

Volume

19

Issue

11

fYear

2001

fDate

11/1/2001 12:00:00 AM

Firstpage

2121

Lastpage

2130

Abstract

This paper presents a new protocol for statistical multiplexing of bursty data traffic in the forward (base-to-mobile) link of a wireless wideband code division multiple access (W-CDMA) system using orthogonal variable spreading factor (OVSF) codes. At the heart of the protocol is an efficient scheduling algorithm that dynamically assigns an OVSF code to a mobile user on a timeslot-by-timeslot basis and allows many users with bursty traffic to share a limited set of OVSF codes. An important feature of our protocol is that it can provide a heterogeneous data rate guarantee to each mobile user and fully utilize the system capacity. Moreover, the unreserved bandwidth of the network can be shared fairly among competing mobile users

Keywords

broadband networks; code division multiple access; codes; data communication; land mobile radio; multiplexing; multiuser channels; protocols; radio links; radio networks; spread spectrum communication; telecommunication traffic; OVSF code; base-to-mobile link; bursty data traffic; efficient scheduling algorithm; fair access; forward link; heterogeneous data rate guarantee; orthogonal variable spreading factor codes; protocol; statistical multiplexing; system capacity; unreserved bandwidth sharing; wideband code division multiple access; wireless W-CDMA system; Access protocols; Bandwidth; Code division multiplexing; Heart; Multiaccess communication; OFDM; Scheduling algorithm; Telecommunication traffic; Wideband; Wireless application protocol;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.963799

Filename

963799