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Enhancement of Throughput for Multi Hop WPAN’s Using UWB - OFDM Physical layer

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Author(s): Ch. Subrahmanyam | K. Chennakesava Reddy | Syed Abdul Sattar

Journal: International Journal of Computer Science and Information Security
ISSN 1947-5500

Volume: 9;
Issue: 5;
Start page: 119;
Date: 2011;
Original page

Keywords: Multi hop | OFDM | Throughput | UWB | WPAN’s

ABSTRACT
One of the most significant determinants for the UWB (Ultra Wide Band) based substitutive physical layer for WPANS (Wireless Personal Area Networks) is MB – OFDM (Multiband Orthogonal Frequency Division Multiplexing). This paper deals in the manipulation outcomes for Multi-Hop WPAN depending upon the UWB - OFDM physical layer are exhibited. However, the spectrum radius of MB-OFDM UWB machines is quite minimal, and single-hop transmissions may not be sufficient for WPANs functionalizing at huge-data-rates. Therefore, a multi-hop provisional WPAN machine is appropriated at this juncture so as to maximize the coverage of UWB radio. Performance of the entire machine is achieved to determine if the Quality-of-Service conditions can, now even, be sustained when an IEEE 802.15.3 TDMA MAC stratum is used in multi-hop correspondence situations. Simulation outputs for Multi Hop WPAN standing on the UWB - OFDM physical layer are reproduced in this paper. In this mode of functioning, the transmitting machines for the data rates of 200 Mbps, 480 Mbps are used because these two are the directives for the highest compulsion rate and the greatest optional rate respectively. We used both 9mX 9m and 20mX20m geographical areas for the networks fields for the Multi Hop scenarios in this simulation model. The critical functionalities of the Multi Hop WPANS like average End – to – End Delay and Packet Failure Rate(PFR) and for all the source – Destination pairs are manipulated and restricted by employing the Qualnet network simulator.
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