PREVEZE, Barbaros Çankaya Üniversitesi - Mühendislik-Mimarlık Fakültesi - Elektronik ve Haberleşme Müh Bölümü, Turkey

Effects of Novel Routing Algorithms on Throughput Improvement of 802.16j Network For Low Vehicular Velocities

34704

Improvement of the multimedia throughput of IEEE 802.16j network is provided by improving the performances of route life time, amount of disconnected periods, average hop count and packet loss rate, using cognitive methods. For this purpose, a novel access method called Most Congested Access First (MCAF) is proposed to decrease the packet loss rate and improve the system throughput. It is shown by comparing the results with the ones evaluated in the literature and with the theoritical results evaluated in this work that, MCAF, which is used in addition to OFDMA and TDMA methods, improves the system throughput by working together with other proposed Spectral Aids (SA) and Buffer Management (BM) methods. It is finally shown in this study that, more throughput improvement is provided when the proposed MCAF, BM and SA methods are used together with AEABR and ATAABR algorithms for different number of nodes with respect to other routing algorithms. The novel proposed methods work with an ad-hoc signaling channel that can be sustained by the mobile nodes for distributed network management.

127

Cognitive Network , 802.16j , routing , throughput , packet loss.

Uludağ University Journal of The Faculty of Engineering

145