The number of portable devices capable of maintaining wireless communications has increased considerably in the last decade. Such mobile nodes may form a spontaneous self-configured network connected by wireless links to ...

This paper presents an approximate analytic model for evaluating the performance of a loosely coupled multiprocessor architecture whose memory, organized in modules, is shared by all the processors. Each memory module (Mi) ...

Buffer overflow is an important phenomenon in data networks that has much bearing on the overall network performance. Such overflow critically depends on the amount of storage space allotted to the transmission channels. ...

Nowadays, video on demand is one of the services more highly appreciated and demanded by customers. As the number of users increases, the capacity of the system that provides these services must also be increased to guarantee ...

Many proposals have studied the optimization of the EDCA mechanism used by the IEEE 802.11p MAC layer to provide QoS. In this work, we focus on the queuing process done by the different Access Categories (ACs). We propose ...

Aquest llibre és una recopilació d'exàmens resolts corresponents als exàmens finals de l'assignatura Xarxes Sistemes i Serveis de Comunicació de la ETSETB, en la qual s'imparteixen els coneixements bàsics per a l'anàlisi, ...

This book is addressed to newcomers to error control coding (ECC), making the subject easy to understand and to apply in a variety of cases. The book begins by presenting in a detailed, step-by-step manner the plethora ...