1 / 16

Resource Allocation in Wireless Networks Using Directional Antennas

Resource Allocation in Wireless Networks Using Directional Antennas. Imad Jawhar,Jie Wu IEEE PERCOM 2006. Outline. Introduction Proposed protocol for QoS routing Simulation Conclusion. Bottleneck. Flow1. c. e. j. Flow2. Flow3. Introduction.

graham-mcneil
Télécharger la présentation

Resource Allocation in Wireless Networks Using Directional Antennas

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Resource Allocation in Wireless Networks Using Directional Antennas Imad Jawhar,Jie Wu IEEE PERCOM 2006

  2. Outline • Introduction • Proposed protocol for QoS routing • Simulation • Conclusion

  3. Bottleneck Flow1 c e j Flow2 Flow3 Introduction • QoS in MANET is an essential component that is needed to support multimedia and real-time applications. • Spatial reuse is a very important factor in wireless network.

  4. Introduction • Directional antenna technology provides the capability for considerable increase in spatial reuse. • Multi-Beam Adaptive Array (MBAA) Antenna • Power Saving • Spatial reuse • Send simultaneously at multiple directions. B B A A MBAA Antenna C C D D

  5. Motivation and Goal • Proposed a bandwidth reservation protocol for QoS routing in TDMA-based MANETusing directional antennas. • Goal: Reduce end-to-end delay. b Flow1 c e i j Flow2 n Flow3

  6. Network Environment • All nodes are static. • Each node equips MBAA antenna and keeps track of the slot status information of its 1-hop and 2-hop neighbors. • Angular groups in MBAA antenna. • ={13,14} , ={14,15}

  7. Rule for Slot Allocation • All beams can transmit or receive, but transmitting and receiving not allow simultaneously. B C A A B Not allowed C

  8. Rule for Slot Allocation • The same angle of beam problem. • When z-->w • z--/->y • x--/->w • x--/->y x w y z x y z w

  9. Proposed protocol for QoS routing • QREQ packet • QREP packet • QREP(S, D, id, b, PATH, NH) Destination Source The session id QREQ(S, D, id, b, x, PATH, NH) Number of slots required A list of next hop information, including hosts and slots The Host forwarding the message A list of demand route, including hosts and slots.

  10. Example p • Node a to node b and p. • Route: a—b—h • Node d to node b. QREQ (a,h,1,1,b,{(a,S1),(b,S2)},(h,S2)) a b QREQ (a,h,1,1,a,{(a,S1)},(b,S1)) d QREQ (d,b,2,1,d,{(d,S1)},(b,S1)) h R S S R R S {14,15} {6,7} {2,3} {14,15} {8,9} {6,7} {1,16} {10,11}

  11. Simulation

  12. Simulation Data Message 10MB Data Message 100MB

  13. Conclusion • This paper proposed a protocol for TDMA-based bandwidth reservation for QoS routing in MANET using directional antennas. • Reduce end-to-end delay.

  14. Thank you

More Related