Fundamentals of 4th Generation Multi- Carrier Code Division Multiple Access (MCCDMA)

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Authors
  1. Nguyen, M-Q.
  2. Fortier, P.
  3. Roy, S.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN);Laval Univ, Quebec QUE (CAN) Departement de Genie Electrique et de Genie Informatique
Abstract
The demand for wireless communications services has grown tremendously. Although the deployment of 3rd generation cellular systems has been slower than was first anticipated, researchers are already investigating 4th generation (4G) systems. These systems will transmit at much higher rates than the actual 2G systems, and even 3G systems, in an ever crowded frequency spectrum. Signals in wireless communication environments are impaired by fading and multipath delay spread. This leads to a degradation of the overall performance of the systems. Hence, several avenues are available to mitigate these impairments and fulfill the increasing demands. Multiple access schemes based on a combination of code division and OFDM techniques have already proven to be strong candidates for future 4G systems. Several techniques have been proposed. The three most popular proposals are multicarrier (MC-) CDMA, multicarrier modulation with direct sequence (DS-) CDMA, and multitone (MT-) CDMA [1]. In this report, we concentrate on MC-CDMA, a novel digital modulation and multi access scheme [1, 2], and a very promising technique for 4th generation cellular mobile radio systems. MC-CDMA allows high-capacity networks and robustness in frequency selective channels [2]. MC-CDMA is a combination of OFDM and code division techniques. Hence, we will study the current state-of-the art trends for implementation of OFDM and CDMA using Field Programmable Gate Array (FPGA) devices. The implementation of OFDM an
Keywords
Wireless;Multi-Carrier CDMA;Fourth Generation;CDMA (Code Division Multiple Access);Cellular telephones;Digital signal processing;FPGA (Field Programmable Gate Array);Wireless communication
Report Number
DRDC-OTTAWA-CR-2006-078 — Contractor Report
Date of publication
01 Mar 2006
Number of Pages
58
DSTKIM No
CA027232
CANDIS No
525270
Format(s):
Electronic Document(PDF)

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