Frequency sharing coded cooperation (FSCC) with single transceiver in half-duplex systems

2009 ◽  
Author(s):  
Junwoo Jung ◽  
Jihye Lee ◽  
Jaesung Lim
Keyword(s):  
Half Duplex ◽  
Coded Cooperation ◽  
Duplex Systems

Turbo Codes with Modified Code Matched Interleaver for Coded-Cooperation in Half-Duplex Wireless Relay Networks

Frequenz ◽  
2015 ◽  
Vol 69 (3-4) ◽  
Author(s):  
Saqib Ejaz ◽  
Feng-Fan Yang
Keyword(s):  
Turbo Codes ◽  
Rayleigh Fading ◽  
Turbo Code ◽  
Half Duplex ◽  
Constraint Length ◽  
Wireless Relay ◽  
Overall Performance ◽  
Coded Cooperation ◽  
The Impact ◽  
Parallel Encoding

AbstractThe parallel encoding and decoding structure of turbo codes makes them natural candidate for coded-cooperative scenarios. In this paper, we focus on one of the key components of turbo codes i.e., interleaver, and analyze its effect on the performance of coded-cooperative communication. The impact of an interleaver on the overall performance of cooperative systems depends on the type of an interleaver and its location in the cooperative encoding scheme. We consider code matched interleaver (CMI) as an optimum choice and present its role in a coded-cooperation scenario. The search and convergence of CMI for long interleaver sizes is an issue; therefore, a modification in the search conditions is included without any compromise on the performance of CMI. We also present analytical method to determine maximum S-constraint length for a CMI design. Further, we analyze the performance of two different encoding schemes of turbo codes, i.e., distributed turbo code (DTC) and distributed multiple turbo code (DMTC) after inclusion of CMI. Monte Carlo simulations show that CMI increases the diversity gain relative to other conventional interleavers such as uniform random interleaver. The channel is assumed to be Rayleigh fading among all communication nodes.

scholarly journals Rate-Energy Tradeoff for Wireless Simultaneous Information and Power Transfer in Full-Duplex and Half-Duplex Systems

2020 ◽  
Vol 65 (2) ◽  
pp. 1373-1384
Author(s):  
Xiaoye Shi ◽  
Jin Sun ◽  
Dongming Li ◽  
Fei Ding ◽  
Zhaowei Zhang
Keyword(s):  
Full Duplex ◽  
Power Transfer ◽  
Half Duplex ◽  
Duplex Systems

scholarly journals Solution for the Problems in RADAR Systems from SNR Gain Expressions and Blackout Likelihood Detection for Aviation Systems

2020 ◽  
Vol 9 (5) ◽  
pp. 980-982
Keyword(s):  
Full Duplex ◽  
Diversity Gain ◽  
Duplex System ◽  
Ground Station ◽  
Radar Systems ◽  
Hybrid Duplex ◽  
Half Duplex ◽  
Aeronautical Industry ◽  
Snr Gain ◽  
Duplex Systems

Issues confronted in Radar frameworks at SDSC are, It is exceptionally troublesome for them to track an flying machine and discover its point, run and rise. With the existing ACSs, being incapable to provide the required information capacity. Since this misfortune of communication takes put between the ground station to the discuss station, discuss crashes may happen. Thus to dodge these kind of issues, modern proposed framework is defined. The full Duplex and Half Duplex systems can be combined to form a Hybrid Duplex Systems (HBD-ACS). In the existing Half duplex system, there was a crux in the spectrum mainly in the aeronautical industry. Hence the new HBD-ACS in proposed which eliminates the progressive interference. Progressive interference detector includes two methods namely, expressions of SNR gain and blackout probability. The Full duplex system may consists of the leftover interference. Hence to eliminate this, Interference Ignorant detector and SIC detector are used. Hence from the HBD-ACS, the diversity gain will be non-zero and the interference can be limited.

scholarly journals Towards Generalised Half-Duplex Systems

2021 ◽  
Vol 347 ◽  
pp. 22-37
Author(s):  
Cinzia Di Giusto ◽  
Loïc Germerie Guizouarn ◽  
Etienne Lozes
Keyword(s):  
Half Duplex ◽  
Duplex Systems
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