Lower bounds of correlation measure for time hopping codes in UWB communication systems

2016 ◽  
Author(s):  
Rajendra Singh ◽  
BS Jassal
Keyword(s):  
Lower Bounds ◽  
Communication Systems ◽  
Correlation Measure ◽  
Time Hopping ◽  
Uwb Communication

scholarly journals Novel method for the selection of time hopping codes for UWB communication systems

2018 ◽  
Vol 7 (4) ◽  
pp. 2063 ◽  
Author(s):  
Rajendra Singh ◽  
Dr BS Jassal
Keyword(s):  
Communication System ◽  
Communication Systems ◽  
Time Hopping ◽  
Single User ◽  
Novel Method ◽  
Overall Performance ◽  
Random Codes ◽  
Correlation Properties ◽  
Uwb Communication ◽  
Selection Of

This work investigates the BER performance of existing code families of Frequency Hopping (FH) codes as Time Hopping (TH) codes in multiuser UWB communication environment and provides a novel method for the selection of TH codes. The performance of codes has been validated in AWGN channel for single user and further validated over multiuser environment. A significant improvement in performance has been observed over random codes. It is validated that selection of better TH codes reduces the MUI and improves the overall performance of the communication system and FH codes with better correlation properties can be used as TH codes in multiuser UWB communication system.  

Correlation Property and Low Bound of Time-Hopping Codes for UWB Communications

2015 ◽  
Vol 743 ◽  
pp. 545-550 ◽  
Author(s):  
Gang Liu ◽  
Gui Xin Xuan ◽  
Xia Zhang
Keyword(s):  
Correlation Function ◽  
Family Size ◽  
Spread Spectrum ◽  
Communication Systems ◽  
Frequency Hopping ◽  
Ultra Wideband ◽  
Correlation Property ◽  
Time Hopping ◽  
Uwb Communication ◽  
Periodic Correlation

In this paper, we analyze correlation property of time-hopping (TH) codes for time-hopping spread spectrum ultra wideband (THSS-UWB) communication systems. Several different definitions of TH periodic correlation function are compared and discussed. Based on the comparison, the relation between TH codes and frequency-hopping (FH) codes is obtained. Also, the averages of TH periodic correlation function values are investigated, and the relations between averages and four parameters of TH codes are introduced. Based on the result, low bound of maximal TH correlation function values is further given, where the expression of low bound of TH codes relates codes period, the number of time slots, TH codes family size and maximal TH correlation function values.

Low-density parity-check codes for noncoherent UWB communication systems

2017 ◽  
Vol 14 (7) ◽  
pp. 1-11 ◽  
Author(s):  
Zhonghua Liang ◽  
Junshan Zang ◽  
Xiaojun Yang ◽  
Xiaodai Dong ◽  
Huansheng Song
Keyword(s):  
Communication Systems ◽  
Low Density ◽  
Parity Check ◽  
Low Density Parity Check ◽  
Parity Check Codes ◽  
Uwb Communication

scholarly journals An efficient Architecture for Multiband-MIMO with LTEAdvanced Receivers for UWB Communication Systems

2014 ◽  
Vol 16 (2) ◽  
pp. 01-06
Author(s):  
Ahmed Qaiem ◽  
◽  
Dr. Anil Kumar ◽  
Dr. Rajeev Paulus
Keyword(s):  
Communication Systems ◽  
Uwb Communication
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