Error rate performance of MC DS-CDMA systems over multiple-input-multiple-output Nakagami-m fading channel

2008 ◽  
Author(s):  
Said M. Elnoubi ◽  
Abdel-Awal Hashem
Keyword(s):  
Error Rate ◽  
Fading Channel ◽  
Multiple Input Multiple Output ◽  
Rate Performance ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Cdma Systems

Lattice Reduction Algorithm Based Uplink MC-CDMA

2015 ◽  
Vol 738-739 ◽  
pp. 391-396
Author(s):  
Umut Yunus ◽  
Askar Hamdulla ◽  
Zhen Hong Jia ◽  
Kurban Ubul
Keyword(s):  
Communication Systems ◽  
Multiple Access ◽  
Multiple Input Multiple Output ◽  
Lattice Reduction ◽  
Rate Performance ◽  
Multiple Input ◽  
High Spectral Efficiency ◽  
Input Multiple Output ◽  
Cdma Systems ◽  
Multi Access

MC-CDMA integrates the advantages of OFDM with those of CDMA, it has high spectral efficiency, robustness against multi-path propagation and multiple access flexibility. Due to the above mentioned merits, it has been considered as a candidate for future wireless. In recent years, lattice reduction technique is discussed in multiple input multiple output communication systems, and has been shown with its better performance. The purpose of this paper is to express a model for uplink MC-CDMA systems in matrix form and then to propose a lattice reduction aided multiuser detection, in order to ameliorate the affects of inter-carrier interference and multi access interference. The effectiveness of the proposed method is evaluated by the bit error rate performance.

scholarly journals Computation of System Performance of MIMO Technique in Communication Channel using V-BLAST Method

2019 ◽  
Vol 8 (2) ◽  
pp. 898-901
Keyword(s):  
Performance Improvement ◽  
Error Rate ◽  
Communication Channel ◽  
Mimo Systems ◽  
Multiple Input Multiple Output ◽  
Block Codes ◽  
Space Time ◽  
System A ◽  
Multiple Input ◽  
Input Multiple Output

In order to improvement both system performances and data rate Multiple Input Multiple Output techniques play an important role in transmission system. A number of techniques are used to do the needful work for performance improvement in MIMO systems belongs to different block codes, apart from that BLAST architecture are used Such as Diagonal Bell laboratories layered space-time (D-BLAST), Vertical Bell Labs Space-Time Architecture (V-BLAST) method. This work defines the performance improvement using V-BLAST technique in Multiple Input Multiple Output detector. Here we discuss the concept of Multiple Input Multiple Output with BLAST architecture. Depends upon the Bit Error Rate and Frame Error Rate, the comparison is made with the existing methods.

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