Optical CDMA Transmission Enabled By Turbo Codes
White Papers The objective of this paper is to demonstrate that the use of turbo codes can both improve the overall system performance in OCDMA networks and even allow more simultaneously transmitting users than is the spreading length of the optical...
[August 1, 2004, 3:00]
Generic MMSE Decision Directed Channel Estimation For OFDM And MC-CDMA
White Papers Furthermore, the paper shows that the turbo-coded MC-CDMA system using the proposed MMSE DDCE method outperforms the corresponding OFDM-based system. This paper proposes a reduced-complexity MMSE SS-CIR estimator, which is suitable for employment...
[February 8, 2006, 0:01]
Method For Using Concatenated Convolutional Turbo Codes In IEEE 802.16a
White Papers Since its discovery in 1993, a lot of research has been done in the application of turbo codes in deep space communications, mobile satellite/cellular communications, microwave links, paging, in OFDM and CDMA architectures.
[October 22, 2003, 6:09]
Design And Implementation Of Turbo Decoders For Software Defined Radio
White Papers It presents a software implementation of Turbo decoder for W-CDMA on the DSP architecture and show that it achieves 2Mbps decoding throughput. Many of the current and next generation wireless protocols include Turbo coding because of its superior...
[November 10, 2006, 0:00]
Throughput Analysis For W-CDMA System With MIMO And AMC
White Papers In both systems the modulation levels and Turbo coding rates are dynamically adjusted depending on the channel conditions. MERL evaluated the average throughput of two types of W-CDMA systems with Multiple-input-multiple-output and adaptive...
[August 3, 2004, 3:00]
Near-Optimal Convolutionally Coded Asynchronous CDMA With Iterative Multiuser Detection/Decoding
White Papers The receiver jointly decodes the differential encoders and the CDMA channel with a combined trellis, and shares soft output information with the convolutional decoders in an iterative (turbo) fashion.
[January 13, 2006, 0:01]
Venturi Puts The TURBO In Zapp's Wireless Data
White Papers Zapp Mobile recently launched Europe's first commercially available 3G service using CDMA 2000 1XRTT technology built over its NMT 450 network. They wanted to dominate the Romanian Internet market by providing a compelling wireless alternative to...
[July 19, 2005, 0:00]
