ICTACT Journal on Communication Technology

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Performance Improvement of IDMA Scheme Using Chaotic Map Interleavers for Future Radio Communication


Affiliations
1 Department of Electronics and Communications Engineering, Institute of Engineering and Technology, GLA University, India
     

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In this paper, chaos based interleavers are proposed for the performance improvement of Interleave Division Multiple Access (IDMA henceforth) for future radio communication (FRC) requirements. 'IDMA' can be mean as the modified case of direct sequence code division multiple access (DS-CDMA) with the same spreading sequences and user specific interleavers for distinguishing the users in multi-user environment. In IDMA systems, the roles of interleavers are pre-eminent and an efficient interleaver contributes in optimizing the system performance. Random interleaver is the popular and basic taxonomy in IDMA. The performance of chaos based interleavers is compared to random interleaver. Simulation results authenticate the performance of chaos based IDMA. Further the proposed chaotic map-interleavers have the less computational complexity and efficient in bandwidth compared to the existing prevailing interleaver algorithms in the domain. The IDMA system model uses a BPSK modulation and repetition coder with a code rate of ½. The system is simulated in MATLAB and results show the BER superiority of chaotic interleaver based IDMA without the need of extra storage resources and less computational complexity.

Keywords

IDMA, Chaos, Tent Map, Logistic Interleaver, CDMA.
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Abstract Views: 289

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  • Performance Improvement of IDMA Scheme Using Chaotic Map Interleavers for Future Radio Communication

Abstract Views: 289  |  PDF Views: 3

Authors

Aasheesh Shukla
Department of Electronics and Communications Engineering, Institute of Engineering and Technology, GLA University, India
Vinay Kumar Deolia
Department of Electronics and Communications Engineering, Institute of Engineering and Technology, GLA University, India

Abstract


In this paper, chaos based interleavers are proposed for the performance improvement of Interleave Division Multiple Access (IDMA henceforth) for future radio communication (FRC) requirements. 'IDMA' can be mean as the modified case of direct sequence code division multiple access (DS-CDMA) with the same spreading sequences and user specific interleavers for distinguishing the users in multi-user environment. In IDMA systems, the roles of interleavers are pre-eminent and an efficient interleaver contributes in optimizing the system performance. Random interleaver is the popular and basic taxonomy in IDMA. The performance of chaos based interleavers is compared to random interleaver. Simulation results authenticate the performance of chaos based IDMA. Further the proposed chaotic map-interleavers have the less computational complexity and efficient in bandwidth compared to the existing prevailing interleaver algorithms in the domain. The IDMA system model uses a BPSK modulation and repetition coder with a code rate of ½. The system is simulated in MATLAB and results show the BER superiority of chaotic interleaver based IDMA without the need of extra storage resources and less computational complexity.

Keywords


IDMA, Chaos, Tent Map, Logistic Interleaver, CDMA.

References