TY - JOUR AU - Zhang, Liqiang AB - MobiCom 2010 Poster: Dynamic Channel Reservations for Wireless Multihop Communications Jun Yi+ , Christian Poellabauer+ , Xiaobo Sharon Hu+ , Thidapat Chantem+ Liqiang Zhang — {jyi, cpoellab, shu, tchantem}@nd.edu liqzhang@iusb.edu + Computer Science and Engineering, University of Notre Dame, IN, USA — Computer and Information Sciences, Indiana University South Bend, IN, USA Providing real-time service in an energy ef cient manner in wireless multihop networks is an important and challenging problem. However, existing medium access control schemes are either over-coordinated ( xed-schedule-based schemes) or under-coordinated (prioritized contention-based schemes), failing to address this problem ef ciently. This paper introduces a new medium access scheme, called FrugalMAC, aiming to provide timely, ondemand, and contention-free medium access by relying on a progressive, dynamic reservation mechanism coupled with reservation vectors. A node sleeps whenever the channel is not needed for data communication and slot reservation. In addition, FrugalMAC employs reservation pipelining and an admission control mechanism to support end-to-end real-time stream delivery. We have implemented a prototype of FrugalMAC in our sensor network testbed. Our preliminary results show that FrugalMAC has high energy ef ciency and effectively supports timeliness. I. Introduction A B C D E Many wireless multihop networks are used TI - Dynamic channel reservations for wireless multihop communications JF - ACM SIGMOBILE Mobile Computing and Communications Review DO - 10.1145/1923641.1923657 DA - 2010-12-27 UR - https://www.deepdyve.com/lp/association-for-computing-machinery/dynamic-channel-reservations-for-wireless-multihop-communications-A21gbRMRcc SP - 43 VL - 14 IS - 3 DP - DeepDyve ER -