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Anil Kumar, S.
- Jamming-Aware Traffic Allocation for Multiple-Path Routing Using Portfolio Selection
Abstract Views :136 |
PDF Views:1
Authors
Affiliations
1 Information Technology from St. Ann's College of Engineering and Technology, Chirala, IN
2 Computer Science & Engineering from Siddhartha Engineering College, IN
3 Electronics and Communications Engineering from University of Madras, Chennai, IN
1 Information Technology from St. Ann's College of Engineering and Technology, Chirala, IN
2 Computer Science & Engineering from Siddhartha Engineering College, IN
3 Electronics and Communications Engineering from University of Madras, Chennai, IN
Source
Wireless Communication, Vol 4, No 14 (2012), Pagination: 850-854Abstract
Multiple-path source routing protocols allow a data source node to distribute the total traffic among available paths. In this article, we consider the problem of jamming-aware source routing in which the source node performs traffic allocation based on empirical jamming statistics at individual network nodes. We formulate this traffic allocation as a lossy network flown optimization problem using portfolio selection theory from financial statistics. We show that in multi-source networks, this centralized optimization problem can be solved using a distributed algorithm based on decomposition in network utility maximization (NUM). We demonstrate the network's ability to estimate the impact of jamming and incorporate these estimates into the traffic allocation problem. Finally, we simulate the achievable throughput using our proposed traffic allocation method in several scenarios.Keywords
Jamming, Multiple Path Routing, Portfolio Selection Theory, Optimization, Network Utility Maximization.
- Distribution of Organic Carbon in Particle Size Fractions of a Red Soil Under Long-Term Fertilization
Abstract Views :216 |
PDF Views:0
Authors
S. Anil Kumar
1,
K. Sudhir
2
Affiliations
1 Department of Soil Science and Agricultural Chemistry, Regional Horticultural Research and Extension Centre (U.H.S.), Bengaluru (Karnataka), IN
2 Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences (G.K.V.K.), Bengaluru (Karnataka), IN
1 Department of Soil Science and Agricultural Chemistry, Regional Horticultural Research and Extension Centre (U.H.S.), Bengaluru (Karnataka), IN
2 Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences (G.K.V.K.), Bengaluru (Karnataka), IN
Source
An Asian Journal of Soil Science, Vol 11, No 1 (2016), Pagination: 90-94Abstract
Soil samples were collected from two depths i.e., 0-15 and 15-30 from the long term experiment field at Zonal Agricultural Research Station, GKVK Bengaluru after harvest of maize in the year 2008 to study the soil organic carbon (SOC) distribution in particle size fractions. The soil was sandy loam of texture with acidic pH and low organic carbon status. The results of the study revealed that the soil pH was decreased due to the imbalanced fertilizer treatments and was maintained near initial level due to treatments involving both balanced fertilizers and FYM addition. The use of organics alone or organics along with fertilizers resulted in build up of SOC compared to use of only inorganic fertilizers. Soil organic carbon estimation in each size fraction indicated that the clay fraction had the highest OC concentration followed by silt and sand in the both depths of the soil. Soil organic carbon in sand declined rapidly upon cultivation, mostly due to oxidation and disintegration of unstable aggregates to enter siltsize or clay-size fraction because of intensive cultivation of the soil for 25 years. The study revealed that C was very slowly sequestered in the clay and silt fractions of the soil.Keywords
Soil Organic Carbon, Particle Size Fractions, Carbon Enrichment Ratio, Carbon Sequestration.References
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