RPB-MD: Providing robust message dissemination for vehicular ad hoc networks

A Road Layout Based Broadcast Mechanism for Urban Vehicular Ad Hoc Networks

“…For this purpose, it must be possible for the current forwarding vehicle to confirm the reception of a safety message by the next forwarding vehicle. There are largely two methods of confirming the receipt of a safety message: explicit acknowledgment, which requires the exchange of a control message, and implicit acknowledgment, which regards the broadcast of safety message by the next forwarding vehicle as the reception confirmation message and considers that all vehicles located between itself and the next forwarding vehicle have received the safety message [9][10][11][12][13]. In VBURL, the implicit acknowledgment is deployed for the efficient use of limited wireless resources considering the VANET environments, similarly to the method used in other studies [9,12,13].…”

“…Various mechanisms have been proposed to make up for 802.11p for the provision of reliable broadcasts [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. In [4][5][6][7][8] the authors proposed extensions of 802.11p to avoid the collisions caused by the hidden terminal.…”

“…Differing from [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19], [20,21] proposed reliable broadcast mechanisms for VANET to be implemented above the MAC layer, that is, 802.11p. Their common design objectives are to reduce the number of broadcast forwarding attempts by selecting vehicles that can forward the message to the largest possible number of vehicles that have not received the message yet to optimize the broadcast efficiency.…”

“…In [4][5][6][7][8] the authors proposed extensions of 802.11p to avoid the collisions caused by the hidden terminal. On the other hand [9][10][11][12][13][14][15][16] proposed the acknowledgment schemes for 802.11p to check the reception of broadcast message at the target vehicles and to have the rebroadcast be made if it is needed in order to guarantee the reliable broadcast. In particular, [17][18][19] focus on the reliable broadcast in urban environments and address the problem of broadcast inefficiency in addition to the reliability.…”

Evaluating the impact of a novel message dissemination scheme for vehicular networks using real maps

“…3. The RPB-MD protocol (Liu and Chigan, 2012) is a message dissemination (MD) approach with a relative position based (RPB) addressing model that allows defining the intended receivers in the zone of relevance. Simulation results show high delivery ratio and low data overhead; however, the scenario used is a single bidirectional highway, and the Radio Propagation Model selected is the deterministic Two-Ray Ground.…”