Thanks a lot for your replies , it helped a lot ,
my eng background is electrical and iama paasout from one of the best schools in bangalore,
i have worked in Companies like Infosys and Motorola.. for like 6 months..
then i havea done a project in NAL , India in DSP . i personally want to to stuy communicatons in my major .
UCSD was my first pref but i dont think so that is possible now with score like mine..