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CDMA Development Group White Paper: 3G Systems
White Papers The objective of this paper is to present the CDMA Development Group's (CDG) view on key topics with respect to third generation (3G) and address some of the more technical aspects of the cdma2000 3G proposal.
[July 19, 2005, 0:00]
CDMA 2000 EV-DO Revision B
White Papers Voice traffic is often referred to as CDMA 2000 1X and data as CDMA EV-DO. The CDMA 2000 delivers the highest voice efficiency in the wireless industry, and EV-DO is clearly the market leader for high speed wireless mobile broadband.
[June 16, 2006, 1:00]
CDMA-Gone with the Wind?
White Papers This white paper presents the main issues in the world CDMA market. Lately, there have been many rumors and doubts over the future of CDMA, and these are expected to have an impact on the main CDMA handset manufacturers, especially in Korea and...
[September 20, 2007, 10:08]
CDMA Network Technologies: A Decade of Advances and Challenges
White Papers This paper briefly describes the origins of CDMA technology and the emergence of 3G implementations such as cdma2000 1X and cdma2000 1x EV-DO. The paper concludes with a discussion of some of the technical problems that can occur in CDMA networks...
[March 2, 2004, 11:19]
CDMA End-to-End Security
White Papers Code Division Multiple Access (CDMA) technology originated from military applications and cryptography, and to date, do not have any report of high-jacking or eavesdropping on a CDMA call in a commercially deployed network.
[October 11, 2005, 3:00]
Novell Case Study: QUALCOMM CDMA Technologies
White Papers QUALCOMM Incorporated is a leader in developing and delivering innovative digital wireless communications products and services based on the company's CDMA digital technology. After evaluating the AMD Opteron processor, QCT decided to move much of...
[April 13, 2007, 1:01]
CDMA 1X Handset USB Composite Device
Downloads CDMA 1X Handset USB Composite Device
[May 19, 2004, 8:00]
CDMA-Based Network-on-Chip Architecture
White Papers 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 packets between resources.
[January 30, 2009, 9:38]
Test Setup for CDMA Protocol Stack
White Papers CDMA 2000 defines a complete protocol & air interface for wireless communication. The client is a leading management, systems and technology consulting firm working for a Mobile Infrastructure company.
[January 30, 2009, 9:50]
MC-CDMA in Personal Area Networks - A Combined PHY and MAC Approach
White Papers MC-CDMA is a PHY layer technique that provides all these features. Future personal networks (PN) will be complemented by personal area networks (PANs), which are considered as a building block for 4G communication systems.
[January 31, 2009, 8:24]
Power Control Algorithm in CDMA Systems
White Papers In this paper a power control techniques for CDMA system is presented. Power control is the most important system requirement for CDMA systems. For CDMA system to function effectively, one need to control the power; if power control is not...
[January 20, 2006, 0:01]
QUALCOMM CDMA Technologies Uses the AMD Opteron Processor to Power Design Automation Applications for Sophisticated New Chipsets
White Papers QUALCOMM, Inc.is a leader in developing and delivering innovative digital wireless communications products and services based on the Company's CDMA digital technology. QUALCOMM CDMA Technologies (QCT) designs and tests the chipsets used to power...
[June 24, 2009, 16:01]
Multiuser Detection for Overloaded CDMA Systems
White Papers Multiuser detection for overloaded CDMA systems, in which the number of users is larger than the dimension of the signal space, is of particular interest when bandwidth is at a premium. In this paper, certain fundamental questions are answered...
[November 8, 2006, 0:00]
Performance of Channel Estimation Assisted Linear Multiuser Receivers for Downlink CDMA Systems With Long Spreading Codes
White Papers With availability of spatial/temporal diversity in the downlink of long code CDMA systems, subspace technique has been shown to be able to estimate channel parameters. Based on the estimated channel, the authors construct three typical linear...
[November 8, 2006, 0:00]
Wideband Code Division Multiple Access (W-CDMA)
White Papers Wideband code division multiple access (W-CDMA) is a CDMA channel that is four times wider than the current channels that are typically used in 2G networks in North America. European Telecommunications Standards Institute (ETSI) decided to choose...
[August 14, 2003, 0:00]
Soft Handoff and Uplink Capacity in a Two-Tier CDMA System
White Papers In systems using Code-Division Multiple Access (CDMA), user capacity is enhanced by using soft handoff. This paper examines the effect of soft handoff on the uplink user capacity of a CDMA system consisting of a single macrocell in which a single...
[March 25, 2008, 8:43]
Reliable W-CDMA Network Design
White Papers This paper investigates the W-CDMA network design problem with reliability considerations. A design model that maximizes revenue net the cost of building and maintaining the network infrastructure to provide reliable communication subject to...
[January 12, 2008, 0:01]
Temporal Diversity Assisted Blind Channel Estimation for Downlink Long-Code CDMA Systems
White Papers In CDMA downlink, subspace channel estimation can not be applied directly since long spreading codes destroy the rank condition of the received data covariance matrix. However, after introducing temporal diversity in the transmitted chip sequence...
[November 8, 2006, 0:00]
Authentication and Encryption in CDMA Systems
White Papers This white paper attempts to address the concept of Authentication and Encryption in CDMA systems and the usage of this feature in today's mobile telephony environment. Mobile usage has virtually penetrated every aspect of our daily lives from the...
[January 15, 2008, 1:58]
