Upena D Dalal

Work place: Sardar Vallabhbhai National Institute Of Technology, Surat, India

E-mail: Upena_Dalal@Yahoo.Com

Website:

Research Interests: Computational Science and Engineering, Computational Engineering, Engineering

Biography

Dr Upena Dalal is currently Associate Professor and Head at Electronics and Communication Engineering department, at the Sardar Vallabhbhai Patel National Institute of Technology (SVNIT), Surat. She received her doctoral degree in era of wireless communication and post graduation in Electronics and Communication Systems in which she was gold medalist. She has vast teaching experience of 24 years and her major subjects are Cellular Technology, Wireless Communication and Fiber optic networks. She is author of well-known book on "Wireless Communication" by Oxford University press (2009) and ―Selectively Imposed Pilot based Channel Estimation" by VDM publications, Germany (2010). She is also co-author of book on "WiMAX Developments" from Intechweb, Viena, Austria (2010). She has guided several PhD and MTech students and coordinated conference, STTPs, workshops and numerous technical programs for betterment of students, faculty and research fraternity.

Author Articles
Multi Point Search Pattern for Fast Search Motion Estimation of High Resolution Video Coding

By Nehal N. Shah Upena D Dalal Priyank H. Prajapati

DOI: https://doi.org/10.5815/ijigsp.2015.07.07, Pub. Date: 8 Jun. 2015

Block matching algorithm (BMA) based motion estimation (ME) is most accepted method for removal of temporal redundancy between frames in video coding. With recent advancement in resolution of video, the need of search pattern covering most of macroblocks within search area in frame is increasing. Existing search patterns are tiny and take plenty of time to reach at edge or corner of the search window. With aim of covering nearly every probable candidate macroblocks in all direction and to speed up the search process, multipoint search patterns are presented in this paper. Initial candidate macroblocks are chosen on grid of 12x12 and then search progresses like traditional diamond or hexagon search. Due to multipoint, chances of trapping in incorrect direction is very less and method can exhibit better quality of encoding with optimum number of search points.

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Mobile Governance based on WiMAX Connectivity for Rural Development in India

By Kalpana Chaudhari Upena D Dalal Rakesh Jha

DOI: https://doi.org/10.5815/ijcnis.2012.04.06, Pub. Date: 8 May 2012

The research work aims to explore the nature, role and relevance of the wireless technologies such as WiMAX connectivity for rural area of Jalgoan district, India. It focuses on development of the WiMAX(Worldwide Interoperability for Microwave Access) network model using OPNET MODELER 14.5 and observe overall performance with fixed , mobile node with two base station .The model is Proposed to connect 50GKC (nodes), which are distributed all over coverage area of Jalgoan district using WiMAX connectivity. The 50 number of GKC are proposed to work in between 783Gram panchayats of Jalgoan district which is supposed to run with the support of Gram panchayat head . The scope of WiMAX is to provide last mile wireless broadband access for fixed and mobile users as an alternative to the wire line DSL and cable access. The physical and MAC layer of this technology refer to the IEE802.16e standard which supports five different data delivery service classes that can be used in order to satisfy QOS requirement of different applications such as VOIP, videoconference, FTP, web etc. The work is divided in three scenarios (network model), each scenario consist of different number of nodes with two BS and performance is observed with audio and video application such as VOIP and MPEG .All simulation results based on optimized network and area considered between two base station. The work provide the high speed wireless connectivity platform to build Electronic Governance project in Jalgoan district.

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Other Articles