sanjana prasad - Academia.edu (original) (raw)

Papers by sanjana prasad

2023 International Conference for Advancement in Technology (ICONAT)

2022 International Conference on Smart Generation Computing, Communication and Networking (SMART GENCON)

2017 IEEE 8th Annual Ubiquitous Computing, Electronics and Mobile Communication Conference (UEMCON)

In this paper, an improved scheme called Scaled Offset Particle Swarm Optimization based Partial ... more In this paper, an improved scheme called Scaled Offset Particle Swarm Optimization based Partial Transmit Sequence (SOPSO-PTS) for reducing Peak-to-Average Power Ratio (PAPR) in wireless communications is presented. The main focus of this paper is to reduce PAPR as well as the computational complexity. The proposed scheme SOPSO-PTS has salient features such as faster convergence to the optimum value and provides a good control mechanism to the particle's velocity which makes it unique from the other conventional PSO-PTS schemes. The proposed scheme performs better when compared to Simulated Annealing (SA) PTS and Particle Swarm Optimization (PSO) PTS techniques.

2022 3rd International Conference on Communication, Computing and Industry 4.0 (C2I4)

2022 2nd Asian Conference on Innovation in Technology (ASIANCON)

Computational Methods and Data Engineering

2017 International Conference on Innovations in Information, Embedded and Communication Systems (ICIIECS), 2017

OFDM is a multi-carrier modulation technique. The major advantage of OFDM includes high data rate... more OFDM is a multi-carrier modulation technique. The major advantage of OFDM includes high data rate transmission, spectral efficiency, and good BER performance. But the major limitation of OFDM is its High Peak-to-Average Power Ratio (PAPR). High PAPR results in increased hardware complexity and also decrease in efficiency of RF amplifiers. One of the most efficient techniques to reduce PAPR is Partial Transmit Sequence Technique. PTS technique has the drawback of exhaustive search complexity as the number of sub-blocks increases. In this paper, we compare the performance of Particle Swarm Optimization based PTS (PSO-PTS) and Genetic Algorithm based PTS (GA-PTS) for 16-QAM modulation scheme. Simulation results indicate that PSO based PTS scheme performs better than GA-PTS with less computational complexity.

– The increasing demand of wireless communication and the needs of new wireless devices have tend... more – The increasing demand of wireless communication and the needs of new wireless devices have tend to research on self organizing, self healing networks without the interference of centralized or pre-established infrastructure/authority. Vehicular Ad hoc Networks (VANET) is the subclass of Mobile Ad Hoc Networks (MANETs). The communication may be of 3 types- 1.inter-vehicle communication 2.vehicle to roadside communication 3.inter-roadside communication i.e communication between roadside unit and the base station. Network connectivity is the key factor for frequent link breakage and high mobility of vehicles as it greatly affects the VANET performance. Performance of communication between vehicles depends on various routing protocols. In the following sections we compare DSR, ZRP and FSR in sub urban environment based on their performance metrics.

Wireless Sensor Networks (WSNs) have been predicted to be in all domains in the near future. Howe... more Wireless Sensor Networks (WSNs) have been predicted to be in all domains in the near future. However in order to reach this scenario, researchers are finding a solution to some difficulties which are slowing down the wide spread use of these networks. One the activity done by WSN that consumed the most energy is the number of packets sent/received. In order to reduce this and to ensure WSN successful operation, hierarchical clustering protocols have been developed. -TEEN and WBM-TEEN: two hierarchical routing protocols, based on nodes clustering and improving the well-known protocol Threshold sensitive Energy Efficient sensor Network protocol (TEEN) are presented . This improvement is accomplished in a way such that each cluster is node balanced and the total energy consumption between sensor nodes and cluster heads is minimized by using multi-hops intra-cluster communication. Simulation results (using NS2 simulator) show that the proposed protocols exhibit better performance than L...

Wireless Body Area Network (WBAN) technology has significantly increased the potential of remote ... more Wireless Body Area Network (WBAN) technology has significantly increased the potential of remote healthcare monitoring systems. It contains more number of sensors that can be attached directly on the skin or placed under clothes for monitoring vital signrelated data of patients and route this data towards a sink using wireless technology. The data mostly consists of medical information. So, high reliability and low delay is required when routing the data. The medical data of patients can be transferred using the efficient routing protocols. The main objective of this paper is to evaluate the performance of routing protocols and to determine the suitable routing protocol with security for Wireless Body Area Networks. The performance of sensor nodes can be calculated using NS2. The results computed here for throughput, end to end delay. Here, various routing protocol are analyzed and suggest that AODV as the best routing protocol. It increases throughput and reduces delay. In WSN, Sec...

Wireless Personal Communications, 2019

High Peak-to-average power ratio (PAPR) is one of the main issues in multicarrier modulation syst... more High Peak-to-average power ratio (PAPR) is one of the main issues in multicarrier modulation systems. PAPR is mainly caused due to the summation of various signals having high amplitude values. Several PAPR reduction techniques were employed, out of which Selective Mapping (SLM) proved to be one of the most effective schemes. Some drawbacks in SLM technique are high computational complexity and phase search complexity. Selection of phase sequences in SLM plays a major role in the reduction of PAPR as well as the computational complexity. Modified SLM was introduced to reduce computational complexity in SLM technique. In this paper, we apply various phase sequences such as Riemann, Centering, Centered Riemann and New Centered to Modified SLM technique and their effect on PAPR reduction are analyzed. From the simulation results, it can be inferred that the modified SLM with New Centered scheme achieves a significant PAPR reduction of the range 8.3-9.3 dB with respect to Conventional OFDM and 3-5.5 dB with respect to Conventional SLM technique. The Modified SLM-New Centered scheme is most suitable for 64-QAM applications as it provides good PAPR reduction performance at lower computational complexity.

The Journal of Engineering, 2019