TDMA - CDMA White Papers
Uplink Scheduling in CDMA Packet-Data Systems
Overview Uplink scheduling in wireless systems is gaining importance due to arising uplink intensive data services (ftp, image uploads etc.), which could be hampered by the currently in-built asymmetry in favor of the downlink. In this work, this paper proposes and studies algorithms for efficient uplink packet-data scheduling in a CDMA cell. The algorithms attempt to maximize system throughput under transmit power limitations on the mobiles assuming instantaneous knowledge of user queues and channels. However no channel statistics or traffic characterization is necessary. Apart from increasing throughput, the algorithms also improve fairness of service among users, hence reducing chances of buffer overflows for poorly located users.
| Publisher | Institute of Electrical and Electronics Engineers | File Format | PDF, requires Acrobat Rdr 5 |
|---|---|---|---|
| Date Published | February 2003 | Downloads | 6 |
| Format | White Papers | ||
| Topics | |||
Data on 3G: an Introduction to the Third Generation
The telecommunications world is changing as the trends of media convergence, industry consolidation, Internet and Internet Protocol (IP) technologies and mobile communications collide into one. Significant change will be bought...
Space Division Multiple Access (SDMA) for Robust Ad Hoc Vehicle Communication Networks
This paper proposes a novel robust and self-organizing architecture for mobile ad hoc networks. The proposed architecture, Space Division Multiple Access (SDMA), relies on user position information and provides users...
Analysis of a Partial Decorrelator in a Multicell DS-CDMA System
Although the decorrelator has probably drawn more attention than any other multiuser detector, almost all studies have been for a single-cell code-division multiple-access (CDMA) system. In a CDMA system with...
Capacity Simulation of cdma2000 1xEV Wireless Internet Access System
The cdma2000 1xEV standard, also known as IS-856, is the next generation solution to the ever-growing demand for high-speed wireless Internet access. The 1xEV standard is an evolution of the...
CDMA-Based Network-on-Chip Architecture
This paper presents a novel Network-on-Chip (NoC) architecture that is based on Code Division Multiple Access (CDMA) techniques. The orthogonality properties of a Walsh code are used to route data...



