By Topic

Fast forced symbol method for distributed space-time turbo codes using complex orthogonal design

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Zeeshan Sattar ; Electrical Engineering Department, King Saud University, Riyadh, Kingdom of Saudi Arabia ; Youssouf Ould-Cheikh-Mouhamedou ; Abdulhameed M. Alsanie ; Hatim M. Behairy

The idea of Distributed Space-Time Codes (DSTCs) was proposed to achieve spatial and temporal diversity without having channel information at the relays in wireless networks. In that scheme, distributive relays cooperate with each other to generate a Space-Time Code (STC) at the receiver. However, DSTCs have poor error rate performances at low signal to noise ratios (SNRs) that may disqualify them from being used in next generation mobile communications systems. To overcome this issue, this paper proposes a novel scheme based on the joint use of DSTCs and turbo codes, which we call “Distributed Space-Time Turbo Codes (DST-TCs)”. We also propose a Fast Forced Symbol Method (FFSM) which significantly improves the coding gain of the proposed DST-TCs. The FFSM is based on repeated decoding operations and does not require any significant change in the design of encoder and decoder of DST-TC. The FFSM provides 0.9 dB of coding gain over simple DST-TC at frame error rate (FER) of 10-5.

Published in:

Computers and Communications (ISCC), 2012 IEEE Symposium on

Date of Conference:

1-4 July 2012