Unified method for bit error rate calculation of time-hopping and direct-sequence ultrawide band systems in the presence of multiple user interference and narrow-band interference

2008 ◽  
Vol 2 (9) ◽  
pp. 1141 ◽  
Author(s):  
K. Sarfaraz ◽  
M. Ghavami
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Narrow Band ◽  
Direct Sequence ◽  
Time Hopping ◽  
Multiple User ◽  
Rate Calculation ◽  
User Interference ◽  
Unified Method

scholarly journals THE STUDY OF BIT ERROR RATE EVOLUTION IN A MOBILE COMMUNICATIONS SYSTEM USING DS – CDMA TECHNOLOGY

2017 ◽  
Vol 18 (2) ◽  
Author(s):  
ION POPA
Keyword(s):  
Mobile Communications ◽  
Bit Error Rate ◽  
Error Rate ◽  
Code Division Multiple Access ◽  
Additive White Gaussian Noise ◽  
Direct Sequence ◽  
Access Technology ◽  
M Sequence ◽  
Code Division Multiple ◽  
Communications System

<p>This paper follows the study of bit error rate evolution in a mobile communications system using DS – CDMA (Direct Sequence – Code Division Multiple Access) technology. We have assessed the bit error rate (BER) based on the signal/noise ratio, Eb/N0, and the number of users in the system. For this purpose, we have used M sequence and Orthogonal Gold sequence and the AWGN (Additive white Gaussian noise) transmission medium<strong>.</strong></p>

scholarly journals Bit Error Rate Performance of Spread Spectrum Communication Systems for AWGN Channels

2020 ◽  
Vol 9 (3) ◽  
pp. 277-280
Keyword(s):  
Bit Error Rate ◽  
Error Rate ◽  
Spread Spectrum ◽  
Communication Systems ◽  
Digital Communication ◽  
Additive White Gaussian Noise ◽  
Direct Sequence Spread Spectrum ◽  
Rate Performance ◽  
Direct Sequence ◽  
Spread Spectrum Systems

The digital communication technologies have gained immense significance as it provides secure and error free services. One of the major advantages of digital communication is that they are much resistant to transmitted as well as interpreted errors. For ensuring the security of data, the most suitable method is to use spread spectrum technique. The spread spectrum technique has gained immense popularity for use in various systems as the spreading of the spectral bandwidth offer many advantages, including the establishment of secure communications, increasing resistance to interference, noise rejection, and so on. The signals which are modulated by using these techniques cannot be jammed and are very hard to interfere. This paper presents the results of investigation of BPSK based direct sequence spread spectrum systems for Additive White Gaussian Noise (AWGN) and undersea channels. The bit error rate performance of BPSK based direct sequence spread spectrum systems has been simulated for the AWGN channel and the results have been plotted.

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