International Journal of Computer Networks & Communications (IJCNC)

AIRCC PUBLISHING CORPORATION

IJCNC 01

MOBILITY AND ROUTING BASED CHANNEL ESTIMATION FOR HYBRID MILLIMETER-WAVE MIMO WSNS

Geeta1 and A.M. Bhavikatti2

1Department of Computer Science Engineering,
Bheemanna Khandre Institute of Technology, Bhalki, India
2Department of Electronics and Communications Engineering,
Bheemanna Khandre Institute of Technology, Bhalki, India

ABSTRACT

Recently, technological developments have enhanced, the use of Millimeter-wave (mm-Wave) Multiple Input Multiple Output (MIMO) system in various communication applications and wireless sensor networks as channel estimation efficiency can be immensely improved with the help of this technological developments in Millimeter-wave MIMO system and wireless sensor network as well. Moreover, they can improve quality of communication services to a great extent. However, cell interference in Millimeter-wave (mm-Wave) MIMO system can produce a massive impact on spectral efficiency. Therefore, a Routing Enabled Channel Estimation (RECE) technique is presented in this article to minimize interference between cells. The proposed Channel Estimation technique improves channel capacity as well as spectral efficiency. Moreover, Normalized Mean Square Error (NMSE) is minimized heavily using proposed RECE technique. Here, main aim of this article is to reduce cell interference and channel estimation inside a cell by using route selection, beam selection, and spatial frequency estimation. Here, different scenarios and parameters are considered to evaluate performance efficiency of proposed RECE technique in terms of spectral efficiency, NMSE and SNR and compared against varied traditional channel estimation techniques. Moreover, it is clearly evident from performance results that the proposed channel estimation technique performs better than the other two methods.

KEYWORDS

Millimeter-Wave MIMO Systems, Interference Reduction, Beam Selection, Channel Estimation Technique, Spectral Efficiency.


Figure 1. Comparison of Spectral efficiency versus the number of MSs in each cell.

Here, Figure 3 shows comparison of Spectral efficiency versus the transmission SNR (dB). Moreover, SNR changes from -40 dB to 40 dB in this simulation. It can be evident from Figure 3 that the spectral efficiency is much higher in case of proposed RECE technique in contrast to Beam-space based method [24] and Pilot based Method [25]. Here, spectral efficiency increases in case of proposed RECE technique with increase in the transmission SNR (dB). Additionally,Figure 4 shows comparison of NMSE versus the transmission SNR (dB). It can be evident from  Figure 4 that the NMSE is much lower in case of proposed RECE technique in contrast to Beamspace based method [24] and Pilot based Method [25]. Moreover, it can be concluded that the proposed approach has reduced more cell interference in the channel estimation than the other two methods.

AUTHORS

Geeta currently work in as Assistant Professor at Bheemanna Kandre Institute of Technology, Bhalki. Perusing Ph.D from Visveswaraiah Technological University, Belgaum Karnataka. Research work at wireless sensor networks. Interest of area wireless communication, digital processing etc 

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This entry was posted on November 17, 2022 by .

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