To study and analysis of modified aggressive packet combining APC scheme with consideration of physical signals and voltage division multiplexing VDM

Abstract

In wireless communication, reliable transportation of data from a source to a destination is an emerging research challenge. Leung proposed to a unique and elegant technique known as (Aggressive Packet Combining (APC) scheme in this aspect during uplink data communication. In literature, we have seen several medications of APC proposed by Bhunia and recently by Chakraborty. APC has several limitations including low throughput. In this thesis tried to recreate/analyse APC with physical level representation. Physical signal analysis of the error vector has been rarely carried out. Therein lies the essence to design suitable protocols to enhance the performance of Aggressive Packet Combining (APC) scheme in terms of throughput and error correction capabilities. newlineThe APC Protocols offer security level and accordingly efficiency is analysed. The security effect plays a vital role when the protocols can be applied in case of message transmission from source to receiver. newlineTo study the application of voltage division Multiplexing at Physical layer is order to improve the performance of APC Voltage Division Multiplexing (VDM) VDM was introduced by Bhunia as one of the multiplexing technique beside Time Division Multiplexing, Frequency Division Multiplexing so commonly used in communication Engineering. In VDM, Separate signal are coded in physical level with different set of signal strengths. As an example, say 1, 0 are represented by pulse of highest 3 V and 0 V in signal-A and LY 5 v and 0V in signal B. newlineTherefore, a date of 1, 0 in A and 0, 1 in A and 0, 1 in B may in addition go as physical Level as 3, 0 v and 5 v. Receiver are getting 3,0 V pulse can identify data as 1, 0 for A and 0,5 v as 0,1 for B. Suitable voltage filter at receiver of then distinguish the signals A, B. newline newline