Multiuser Ber Analysis of Cs-qcsk Modulation Scheme in a Cellular System
نویسندگان
چکیده
In recent years, chaotic communication is a hot research topic and it suits better for the emerging wireless networks because of its excellent features. Different chaos based modulation schemes have evolved, of which the CS-DCSK modulation technique provides better BER performance and bandwidth efficiency, due to its code domain approach. The QCSK modulation technique provides double benefit: higher data rate with similar BER performance and same bandwidth occupation as DCSK. By combining the advantage of code shifted differential chaos shift keying (CS-DCSK) and Quadrature chaos shift keying (QCSK) scheme, a novel modulation scheme called code shifted Quadrature chaos shift keying (CS-QCSK) is proposed and its suitability in a multiuser scenario is tested in this paper. The analytical expressions for the bit-error rate for Multi-user CS-QCSK scheme (MU-CS-QCSK) under Rayleigh multipath fading channel is derived. The simulation result shows that, in multiuser scenario the proposed method outperforms classical chaotic modulation schemes in terms of bit error rate (BER).
منابع مشابه
A Novel Chaos Based Modulation Scheme (cs-qcsk) with Improved Ber Performance
In recent years, various chaos based modulation schemes were evolved, of which the CS-DCSK modulation technique provides better BER performance and bandwidth efficiency, due to its code domain approach. The QCSK modulation technique provides double benefit: higher data rate with similar BER performance and same bandwidth occupation as DCSK. By combining the advantage of code shifted differentia...
متن کاملAnalytical Evaluation of a Hybrid Chaotic Shift Keying [CS-QCSK] in a CDMA System
In recent years, various chaos based modulation schemes were evolved, of which the CS-DCSK modulation technique provides a better BER performance and bandwidth efficiency, due to its code domain approach[10]. The QCSK modulation technique provides double benefit, namely: higher data rate with similar BER performance and same bandwidth occupation as DCSK. By combining the advantage of code shift...
متن کاملA Novel Chaotic Modulation Scheme in a Cooperative Relaying System
In recent years, the demand for new-generation wireless networks has spurred research on cooperative communication, a powerful physical layer technique to combat fading in wireless relaying scenario. Recently, chaos based communication has been proved to exhibit excellent features which suits better for the emerging wireless networks. Different chaos based modulation schemes has been analyzed w...
متن کاملA Novel Chaotic MIMO-OFDM System for Improved Performance in Future Cellular Wireless Networks
In recent years, the explosive growth of new generation wireless networks has spurred lot of research thrust particularly looking for a bandwidth efficient modulation and coding scheme. In this connection, researchers have recently turned up their attention towards chaotic communication systems and golden codes for its attractive benefits. This consequently had motivated us for two new proposal...
متن کاملEnhancing Future Wireless Systems through Advanced Physical Layer Mechanisms
In recent years, the rapid growth of new-generation wireless networks has spurred a research thrust in cooperative communication and it is a powerful physical layer technique to combat fading in wireless relaying scenario. Recently, chaos based communication with its excellent features has been proved to be an appropriate choice for the emerging wireless networks. Different chaos based modulati...
متن کامل