Abstract
In wireless ad hoc networks, the Direct Sequence Code Division Multiple Access (DS-CDMA) is the most promising candidate for wideband data access. The reasons are the high security, high throughput and soft limit on the number of active mobile devices. Soft limit on the network capacity means degradation of the performance by increasing the number of mobile devices. In many ad hoc networks, it is required to maintain the Bit Error Rate (BER) within some tolerable limits for a given SNR. This results in restriction on the number of mobile devices in the network. The number of active mobile devices or network capacity is further reduced by the mutual interference among the users caused due to multipath fading effects and synchronization problems. This paper presents an effective method of capacity enhancement of CDMA based wireless ad hoc networks by using a multiuser detection based power management framework. The system is simulated in the multipath channel models for fixed wireless applications. The proposed scheme increases the capacity two times as compared to the conventional CDMA based networks. Simulation results have been presented to demonstrate the effectiveness of the proposed scheme.
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© 2013 Springer Science+Business Media Dordrecht
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Zeeshan, M., Khan, S.A., Malik, M.Y. (2013). A Secure DS-CDMA Technique with Capacity Enhancement for Ad Hoc Wireless Networks. In: Kim, K., Chung, KY. (eds) IT Convergence and Security 2012. Lecture Notes in Electrical Engineering, vol 215. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-5860-5_19
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DOI: https://doi.org/10.1007/978-94-007-5860-5_19
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