Sanjay Kumar Vishwakarma - Academia.edu (original) (raw)
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Friedrich-Alexander-Universität Erlangen-Nürnberg
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Papers by Sanjay Kumar Vishwakarma
2014 IEEE Global Communications Conference, 2014
In this paper, we consider transmitter optimization in multiple-input single-output (MISO) broadc... more In this paper, we consider transmitter optimization in multiple-input single-output (MISO) broadcast channel with common and secret messages. The secret message is intended for K users and it is transmitted with perfect secrecy with respect to J eavesdroppers which are also assumed to be legitimate users in the network. The common message is transmitted at a fixed rate R0 and it is intended for all K users and J eavesdroppers. The source operates under a total power constraint. It also injects artificial noise to improve the secrecy rate. We obtain the optimum covariance matrices associated with the common message, secret message, and artificial noise, which maximize the achievable secrecy rate and simultaneously meet the fixed rate R0 for the common message.
A combining ability effects study was conducted through line x tester analysis under normal ferti... more A combining ability effects study was conducted through line x tester analysis under normal fertile and saline sodic soil environments. The results indicated the predominance of non- additive gene action for all the traits. The line Kedar and tester K-560 in normal fertile soil and tester Lakhan in saline sodic soil while RD-2552, Narendra Jau-4 and NDB-1173 under both environments
Triple test-cross analysis involving three testers K-560, Narendra Jau-3 and their hybrid K-560 x... more Triple test-cross analysis involving three testers K-560, Narendra Jau-3 and their hybrid K-560 x Narendra Jau-3, were cross to 15 strains/varieties of barley to estimate the epistatic, additive and dominance components of genetic variance. Modified triple test-cross was done for eleven metric traits in two [normal fertile soil (E 1 ) and saline sodic soil (E 2 )] environments. Epistasis was evident for all the characters under study in both environments except plant height in E 2 , protein content in E 1 and lysine content in both conditions. The i type epistasis was significant for seed yield per plant in E 1 only, while j and l type epistasis were significant for most of the traits. Additive (D) component was important in all cases in both conditions except number of effective tillers per plant in E 1 and lysine content in E 1 & E 2 where as non fixable dominance (H) component were significant for all the characters in both conditions except number of effective tillers per plant in E 1 , length of main spike in E 2 and lysine content in both environments. The most of the traits showed partial dominance and directional element, F was non-significant for all the traits, suggesting ambidirectional nature of dominance.
2014 IEEE Global Communications Conference, 2014
In this paper, we consider transmitter optimization in multiple-input single-output (MISO) broadc... more In this paper, we consider transmitter optimization in multiple-input single-output (MISO) broadcast channel with common and secret messages. The secret message is intended for K users and it is transmitted with perfect secrecy with respect to J eavesdroppers which are also assumed to be legitimate users in the network. The common message is transmitted at a fixed rate R0 and it is intended for all K users and J eavesdroppers. The source operates under a total power constraint. It also injects artificial noise to improve the secrecy rate. We obtain the optimum covariance matrices associated with the common message, secret message, and artificial noise, which maximize the achievable secrecy rate and simultaneously meet the fixed rate R0 for the common message.
A combining ability effects study was conducted through line x tester analysis under normal ferti... more A combining ability effects study was conducted through line x tester analysis under normal fertile and saline sodic soil environments. The results indicated the predominance of non- additive gene action for all the traits. The line Kedar and tester K-560 in normal fertile soil and tester Lakhan in saline sodic soil while RD-2552, Narendra Jau-4 and NDB-1173 under both environments
Triple test-cross analysis involving three testers K-560, Narendra Jau-3 and their hybrid K-560 x... more Triple test-cross analysis involving three testers K-560, Narendra Jau-3 and their hybrid K-560 x Narendra Jau-3, were cross to 15 strains/varieties of barley to estimate the epistatic, additive and dominance components of genetic variance. Modified triple test-cross was done for eleven metric traits in two [normal fertile soil (E 1 ) and saline sodic soil (E 2 )] environments. Epistasis was evident for all the characters under study in both environments except plant height in E 2 , protein content in E 1 and lysine content in both conditions. The i type epistasis was significant for seed yield per plant in E 1 only, while j and l type epistasis were significant for most of the traits. Additive (D) component was important in all cases in both conditions except number of effective tillers per plant in E 1 and lysine content in E 1 & E 2 where as non fixable dominance (H) component were significant for all the characters in both conditions except number of effective tillers per plant in E 1 , length of main spike in E 2 and lysine content in both environments. The most of the traits showed partial dominance and directional element, F was non-significant for all the traits, suggesting ambidirectional nature of dominance.