Real-time Communication in Vehicular Ad Hoc Networks (VANETs)

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Then the node can carry out transmission on condition that the desired ICP time slots are assigned to it. In this case, a TBMAC round comprises One CFP, one CP and one ICP. To avoid potential collisions in the ICP, a mechanism needs to be exploited to elect a gateway node to preside over the communication with certain nodes. 14
Chapter 3 Related Works In this chapter we describe some related works treating of layered communication protocols, MANETs/VANETs simulations as well as traffic and vehicular mobility simulation. 3.1 Physical Protocol The Physical protocol is the lowest layer in a network stack. Nature imposes two fundamental limits on all channels, and these determine their bandwidth. These limits are the Nyquist limit, which deals with noiseless channels, and the Shannon limit, that deals with noisy channels [47]. The Physical layer offers services as follows: carrier sensing, Clear Channel Assessment (CCA); sending and receiving packets; received energy detection on received packets; changing channels on physical layers that support multiple channels and changing the state of the transceiver [50]. To meet the demand of bandwidth, some researches are done in physical layer. Different frequency bands could be devoted to the different types of 15
Page 1 and 2: Real-time Communication in Vehicula
Page 3 and 4: PERMISSION TO LEND AND/OR COPY I ag
Page 5 and 6: ABSTRACT Ad hoc networks in which n
Page 7 and 8: 3.4.1.1 Ns-2 . . . . . . . . . . .
Page 9 and 10: 5.3.3.1 Dynamic object . . . . . .
Page 11 and 12: LIST OF FIGURES Figure 2.1: Time Re
Page 13 and 14: Chapter 1 Introduction In this chap
Page 15 and 16: 1.3 Objective For this dissertation
Page 17 and 18: Chapter 2 Background In this chapte
Page 19 and 20: Figure 2.2 Backoff Process 2.2 MANE
Page 21 and 22: In VANETs scenarios there are three
Page 23 and 24: number of stations in the network [
Page 25: Clock synchronisation is necessary
Page 29 and 30: 3.2 MAC Protocol The MAC layer is t
Page 31 and 32: Figure 3.1 Classification of MAC Pr
Page 33 and 34: 3.3.2 Source-driven Routing Protoco
Page 35 and 36: In VANETs, limited resource (e.g. b
Page 37 and 38: 3.4.1.3 TOSSIM / TOSSF TOSSIM [54]
Page 39 and 40: Chapter 4 DESIGN After covering muc
Page 41 and 42: 4.2.2 Individual Behaviour Differen
Page 43 and 44: learning about the system. In [34],
Page 45 and 46: is specified as an entity. An entit
Page 47 and 48: Object Oriented Programming differs
Page 49 and 50: 4.5.2 Roadway Layout As mentioned a
Page 51 and 52: 4.5.4.1 Intra-cell communication Ac
Page 53 and 54: 4.6 TBMAC Application Programming I
Page 55 and 56: 4.7.1.1 Clock synchronisation First
Page 57 and 58: When a vehicle is going to leave a
Page 59 and 60: 4.8 Summary In this chapter we firs
Page 61 and 62: To avoid the confusion from the den
Page 63 and 64: 5.3 Components 5.3.1 Roadway We app
Page 65 and 66: Through above steps, we can get a r
Page 67 and 68: 5.3.3 Vehicle 5.3.3.1 Dynamic objec
Page 69 and 70: For a driving vehicle A, if there i
Page 71 and 72: Thread to implement the enter() met
Page 73 and 74: In the end, we join the above appro
Page 75 and 76: Chapter 6 Evaluation This Chapter i
Page 77 and 78:
many classes were put in the packet
Page 79 and 80:
6.3.1 Vehicular Mobility Model Rand
Page 81 and 82:
6.3.5 Software Usability The TBMAC
Page 83 and 84:
Chapter 7 Conclusion 7.1 Summary In
Page 85 and 86:
7.3 Lessons Learned In this project
Page 87 and 88:
[7] Y.-B. Ko and N. H. Vaidya, “G
Page 89 and 90:
[19] M. Ergen, et al., “Wireless
Page 91 and 92:
[36] J. Misra, “Distributed discr
Page 93 and 94:
[51] “DSRC—Dedicated Short Rang
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Real-time Communication in Vehicular Ad Hoc Networks (VANETs)

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