In this paper, we address the problem of scheduling and routing design in a multi-hop heterogeneous radio network. The scenario consists of two types of nodes: scheduled nodes, which depend upon a centralised resource scheduling scheme, and uncoordinated nodes, which employ an asynchronous Carrier Sense Multiple Access (CSMA) based medium access control protocol. Both types of nodes co-exist on the same spectrum and may interfere each other. In fact, scheduled nodes are synchronized to the Base Station (BS) and communicate to it in a multi-hop fashion, while uncoordinated users are asynchronous with respect to the BS and the other nodes. Our work focuses on the problem of routing and scheduling for the scheduled set of nodes, with the aim of avoiding interference caused by CSMA nodes. In particular, we propose a Coexistence-Aware (CA) routing scheme, based on the definition of a novel link cost metric accounting for the number of potential uncoordinated nodes interfering. The output of the CA routing scheme serves an input to a Multi-Link Proportional Fair (MLPF) scheme, where a new scheduling metric, accounting for the number of hops needed to reach the BS, is designed. The proposed algorithm is compared with a benchmark solution, where routing is based on the level of received power over the links and where the MLPF algorithm presented in the literature is applied. Results show the improvement achieved with the proposed solution.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Novel Routing and Scheduling Algorithm for Multi-Hop Heterogeneous Wireless Networks


    Contributors:


    Publication date :

    2018-06-01


    Size :

    303575 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Q-LEARNING NOVEL ROUTING ALGORITHM IN WIRELESS SENSOR NETWORKS

    Jha, Kundan Kumar / Mallikarjuna, M Mallikarjuna | BASE | 2020

    Free access

    Coverage-scheduling integrated routing in wireless sensor networks

    Yinfei, F. / Qingxu, X. | British Library Online Contents | 2011


    Multi-layer clustering routing algorithm for wireless vehicular sensor networks

    Liu, Y. / Xiong, N. / Zhao, Y. et al. | Tema Archive | 2010


    Joint Routing and Scheduling Optimization in Industrial Wireless Networks Using an Extremal Dynamics Algorithm

    He, Z. / Zhang, W. / Wang, H. et al. | British Library Online Contents | 2014


    Optimized Routing Algorithm for Wireless Sensor Networks

    Shankar, T. / Eappen, Geoffrey / Rajalakshmi, S. | Springer Verlag | 2020