This paper reviews link adaptation techniques used in third generation wireless systems. In particular, the paper discusses the cdma2000 high rate packet data air interface, also known as IS-856. An overview of the forward and reverse link channels in IS-856 is presented, including physical layer features allowing the implementation of link adaptation techniques. Such advanced techniques provide up to 2.4 Mbps throughput on the forward link over 1.25 MHz bandwidth. Simulation results are presented, demonstrating the effectiveness of such techniques providing a high spectral efficient cellular system under a variety of channel environments and including the effects of errors on feedback channels.
Did you find this white paper useful?
21 out of 50 users found this white paper useful
Related white papers
Qualcomm Case Study: Hawaii HomeLoans, Inc.
Hawaii HomeLoans is the state's only 100 percent wireless, full-service mortgage banking company. HHL wanted to operate its business in a cost-effective fashion without wired LAN connectivity or any of...
Bridgewater Systems Enables Midwest Wireless to Expedite Time to Market for CDMA 1x Data Services
With demand for wireless data services growing among its customers and potential revenue from roaming data users in its coverage area going untapped, Midwest Wireless decided to act quickly. Midwest...
Bridgewater Systems Helps Leading Wireless Carrier Deliver Service and Capture Revenue
It was exactly the kind of challenge Bridgewater Systems lives for: help a leading North American wireless carrier introduce, manage access to, and capture revenue from new wireless data services....
Bridgewater Systems and Nortel Networks Partnership Enables Quick Deployment of Prepaid CDMA Solution for Unefon
When one of Mexico's largest telecom providers, Unefon, looked to launch 3G wireless services to its customers, it turned to the experience of partners Bridgewater Systems and Nortel Networks. After...
Tier 1 CDMA2000 Service Provider Replaces Existing System With Bridgewater Systems AAA Solution
Bridgewater Systems recently helped a major North American CDMA2000 Service Provider by replacing their existing Authentication, Authorization and Accounting (AAA) system; in order to create a solution that would take...
Tier1 Wireless Service Provider and Bridgewater Systems: Partnering for Success
When a Tier 1 Wireless Service Provider was originally implementing data services, it turned to Bridgewater Systems for assistance. Bridgewater Systems deployed its CDMA2000 standards-compliant AAA Service Controller, which provides...
Indoor Wireless Coverage: Convention Center
Each year millions of people attend events held at convention centers throughout the world. While attending these events, attendees often need to be in continuous communication with their customers, co-workers,...
