Mobility

Speech Quality Aware Admission Control for Fixed IEEE 802.16 Wireless MAN

Date Added: Aug 2009
Format: PDF

The authors present an Admission Control (AC) algorithm for the specific case of pre-provisioned IEEE 802.16d links for VoIP aggregates. The algorithm approaches AC from a new perspective as admission criterion is speech quality, the sole true quality metric for voice services. As they found the E-Model can be used to reliably estimate speech quality and the resulting R-Score as admission criterion. Moreover, they show that speech quality can be evaluated on aggregate level without compromising individual call's speech quality. The algorithm is simple, fast, and precise and its behavior is consistent over a range of different deployments.