Decision-Feedback Receiver for Quasi-Orthogonal Space-Time Coded OFDM Using Correlative Coding Over Fast Fading Channels

2006 ◽  
Vol 5 (10) ◽  
pp. 3017-3022 ◽  
Author(s):  
Yu Zhang ◽  
Huaping Liu
Keyword(s):  
Fading Channels ◽  
Space Time ◽  
Decision Feedback ◽  
Orthogonal Space ◽  
Fast Fading ◽  
Coded Ofdm

scholarly journals SUPER ORTHOGONAL SPACE TIME TRELLIS CODES OVER NAKAGAMI FADING MODEL

2013 ◽  
pp. 143-146
Author(s):  
POONAM SINHA ◽  
ASHUTOSH SHARMA
Keyword(s):  
Fading Channels ◽  
Space Time ◽  
Selective Fading ◽  
Trellis Codes ◽  
Coding Gain ◽  
Frequency Selective Fading ◽  
Full Diversity ◽  
Orthogonal Space ◽  
Fast Fading ◽  
Frequency Selective Fading Channels

Performance evaluation of super orthogonal space-time trellis codes for non-frequency selective fading channels & frequency selective fading channels. The analysis is done in presence of fast fading, block fading and quasi-static fading in Rayleigh, and Nakhagami fast fading channels along with comparison. While providing full diversity and full rate, the structure of our new codes allows an increase in the coding gain. Not only does our new SOSTTC outperform the space-time trellis codes in the literature, but it also provides a systematic method for designing space time trellis codes at different rates and for different trellises. Since we have used orthogonal designs as the building blocks in our new SOSTTCs, the complexity of the decoding remains low while full diversity is guaranteed. Codes operating at different rates, up to the highest theoretically possible rate, for different number of states, can be designed by using our optimal set partitioning. In general, new SOSTTCs can provide a tradeoff between rate and coding gain while achieving full diversity.

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