Dynamic Dropped packet regulation of contention window for enhancement of IEEE_802.11e

In this paper we present a new scheme which is mend to increase efficacy of present EDCA and also to make EDCA robust in high noise environment where high packet loss is characteristic. Next section of this paper provides an account of EDCA mode. Further it also informs about limitations of present EDCA scheme. Later section of paper presents the proposed scheme. Newly proposed scheme exploits known facts which are presented in previous standards, journals or other kind of research articles. The main objective of the paper is to propose a new scheme DDPA (Dynamic dropped packet algorithm.