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Abstract
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Article Information:
Capacity Optimized CDMA-MIMO Antenna System for Spectral-Efficient Wireless Networks
Nirmalendu Bikas Sinha and Abhishek Mitra
Corresponding Author: Nirmalendu Bikas Sinha
Submitted: 2011 February, 25
Accepted: 2011 March, 19
Published: 2011 March, 30 |
Abstract:
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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.
Key words: 4G, DS-CDMA, MIMO, MMSE, RAKE, ,
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Cite this Reference:
Nirmalendu Bikas Sinha and Abhishek Mitra, . Capacity Optimized CDMA-MIMO Antenna System for Spectral-Efficient Wireless Networks. Research Journal of Applied Sciences, Engineering and Technology, (03): 240-244.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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