@conference { ISI:000351846000018, title = {A new Cross layer Architecture for Service Differentiation in Wireless Sensor Networks}, booktitle = {2013 IEEE MALAYSIA INTERNATIONAL CONFERENCE ON COMMUNICATIONS (MICC)}, year = {2013}, note = {IEEE 11th Malaysia International Conference on Communications (MICC), Kuala Lumpur, MALAYSIA, NOV 26-28, 2013}, pages = {92-97}, publisher = {IEEE}, organization = {IEEE}, abstract = {This paper describes a new cross-layer architecture that supports service differentiation in Wireless Sensor Networks (WSN). In WSNs, sensor nodes are supposed to communicate using a random access method. We propose a mathematical model that combines parameters form network and MAC layers. We aim to estimate and to enhance the throughput of multi-hop WSNs and the stability of the forwarding queues used for real-time and best-effort traffic. We suppose in this paper that we have one single sink in the WSN and we study the impact of the probability of transmitting (real-time and best-effort traffic), density of sensor and hop count on the end-to-end throughput.}, isbn = {978-1-4799-1532-3}, author = {Loutfi, Ahmed and Mohamed, Senhadji and Sabir, Essaid and Kobbane, Abdellatif and El Koutbi, Mohammed} }