OICC Press International Journal of Mathematical Modelling & Computations 2228-6233 4 4 2014 03 21 Analysis of Renewal Input State Dependent Vacation Queue with N-Policy 299 307 EN Vijaya Laxmi Pikkala Andhra University, Visakhapatnam India Suchitra Vepada Andhra University, Visakhapatnam India Journal Article 2014 03 21 This paper analyzes renewal input state dependent queue with N- policy wherein the server takes exactly one vacation.Using the supplementary variable technique and recursive method,we derive the steady state system length distributions at various epochs.Various performance measures has been presented. Finally, some numerical computations in the form of graphs are presented to show the parameter effect on various performance measures.