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2011 (Vol. 3, Issue: 03)
Article Information:

Capacity Optimized CDMA-MIMO Antenna System for Spectral-Efficient Wireless Networks

Nirmalendu Bikas Sinha and Abhishek Mitra
Corresponding Author:  Nirmalendu Bikas Sinha 

Key words:  4G, DS-CDMA, MIMO, MMSE, RAKE, ,
Vol. 3 , (03): 240-244
Submitted Accepted Published
2011 February, 25 2011 March, 19 2011 March, 30
Abstract:

With the explosion of wireless data traffic there is an increasing emphasis on techniques that can enhance the spectral efficiency and utilization of scarce wireless bandwidth. The future generation (4G) Wireless Networks aim at offering very high data rates and flexibility by supporting multiple users by adopting multicarrier (MC) transmissions. Multi-Input Multi-Output (MIMO) has emerged as a hot topic in wireless communications during the last decade. This is due to possible dramatic increase in reliability and capacity as compared to single-antenna solutions. In this study, an attempt has been made to increase the capacity of a CDMA-based MIMO system by exploiting the frequency selectivity of the channel. The proposed system turns a MIMO frequency selective channel to a set of parallel multiplexing sub-channels in space and time domain. Numerical results show that the proposed CDMA MIMO antenna systems further increase the number of subchannels by exploiting the frequency selectivity of the channel, which leads to a significant increase in both the average capacity and the outage capacity.
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  Cite this Reference:
Nirmalendu Bikas Sinha and Abhishek Mitra, 2011. Capacity Optimized CDMA-MIMO Antenna System for Spectral-Efficient Wireless Networks.  Research Journal of Applied Sciences, Engineering and Technology, 3(03): 240-244.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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