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Mahesh, H. M.
- Algorithm Design and Prototyping of Alamouti Encoder and Decoder with MIMO System
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Authors
Affiliations
1 Department of Electronics and Communication, SDM Institute of Technology, Dharwad, 580002, IN
2 Department of Telecommunication, R V College of Engineering, Bangalore-5600069, IN
3 Department of Applied Electronics, Bangalore University, Bangalore-5600067, IN
1 Department of Electronics and Communication, SDM Institute of Technology, Dharwad, 580002, IN
2 Department of Telecommunication, R V College of Engineering, Bangalore-5600069, IN
3 Department of Applied Electronics, Bangalore University, Bangalore-5600067, IN
Source
Digital Signal Processing, Vol 3, No 2 (2011), Pagination: 87-92Abstract
In this proposed work, we present the design of a comprehensive algorithm development for MIMO communication systems. This is based upon the highly customizable and optimizable XILINX hardware platform. Multiple Input / Multiple Output (MIMO) technology offers tremendous performance gains for Wireless Long Area Networks (WLANs) at relatively low cost. Some of the techniques like building a hardware test beds are beneficial and fully compatible with today‟s WLAN standards. The proposed work concentrates with algorithm design and implementation of Alamouti‟s Space-Time Block Codes (STBC) with two transmit antennas and two receive antennas over a MIMO channel. The implementation part consists of optimization in various parameters. The proposed work also focuses on the finite precision simulation and synthesis results obtained with ModelSim simulator version XE III 6.0A and Xilinx ISE 7.1i respectively. The tests were carried out on Spartan xc2s600e and 3s5000fg1156 FPGAs. VHDL (VHSIC Hardware Description Language) is used for programming of the proposed model.Keywords
Maximum Likelihood Detection (MLD), Orthogonal Space-Time Block Codes (OSTBC), Channel State Information (CSI), Maximal Ratio Combining (MRC).
- Cry Toxin Expression in Bt-Cotton Hybrid Seeds:Impact on ‘refuge-in-Bag’ Strategy for Managing Resistance in Bollworms
Abstract Views :342 |
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Authors
Affiliations
1 Department of Entomology, College of Agriculture, University of Agricultural Sciences, GKVK Campus, Bengaluru 560 065, IN
1 Department of Entomology, College of Agriculture, University of Agricultural Sciences, GKVK Campus, Bengaluru 560 065, IN
Source
Current Science, Vol 118, No 10 (2020), Pagination: 1494-1495Abstract
A key strategy for delaying the deve-lopment of resistance among cotton bollworms to the Bt toxins is ‘refugia’. This refers to the cultivation of a small proportion of non-Bt-cotton alongside Bt-cotton, in order to maintain a consi-derable population of bollworm adults that are not selected for by the Bt toxins1–3 . The unselected population of bollworm adults, by means of mating with, if any, a small number of selected individuals, is expected to reduce the rate of resistance development4,5 . Thus, with the purpose of implementing the refugia strategy, farmers purchasing Bt-cotton seeds have been provided with a prescribed quantity of non-Bt seeds for simultaneous planting. However, Indian cotton farmers, most of whom are small or marginal, have barely taken the risk of planting non-Bt seeds, thus leading to gross non-compliance of the pre-scribed refuge requirement. This non-compliance has been attributed to the development of resistance recorded among the bollworms against the Bt toxins 6–8 .Full Text
References
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- Tabashnik, B. E., Gassmann, A. J., Crowder, D. W. and Carrière, Y., Nat. Biotechnol., 2008, 26, 199–202.
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- Dennehy, T. J., Head, G. P., Moar, W., Greenplate, J. T., Mohan, K. S., Ravi, K. C. and Parimi, S., Proceedings of the Beltwide Cotton Conference, Atlanta, GA, USA, 4–7 January 2011, p.1063.
- Fabrick, J. A. et al., Sci. Rep., 2015, 12.
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- Gazette notification, 27th December 2016, Ministry of Agriculture and Farmers Welfare, Government of India. https://seednet.gov.in/SeedGO/2016/173-355_2016.pdf(last accessed on 28 February 2020).
- Kranthi, K. R., Cotton Statistics and News, 2015, pp. 1–6; http://www.cicr.org.in/pdf/pop_art/Pinkbollworm.pdf (last accessed on 28 February 2020).
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- Muralimohan, K. and Srinivasa, Y. B., Curr. Sci., 2012, 102(9), 1243.
- Response
Abstract Views :244 |
PDF Views:79
Authors
Affiliations
1 Department of Entomology, University of Agricultural Sciences, GKVK Campus, Bengaluru 560 065, IN
1 Department of Entomology, University of Agricultural Sciences, GKVK Campus, Bengaluru 560 065, IN
Source
Current Science, Vol 120, No 5 (2021), Pagination: 751-751Abstract
No Abstract.Full Text
References
- Muralimohan, K. and Mahesh, H. M., Curr. Sci., 2020, 118(10), 1494–1495.
- Brévault, T., Tabashnik, B. E. and Carrière, Y., Sci. Rep., 2015; doi:10.1038/ srep09807.