Efficient broadcasting in ad hoc wireless networks using directional antennas

Abstract

Abstract-Using directional antennas to conserve bandwidth and energy consumption in ad hoc wireless networks (or simply ad hoc networks) is becoming popular in recent years. However, applications of directional antennas for broadcasting have been limited. We propose a novel broadcast protocol called directional self-pruning (DSP) for ad hoc wireless networks using directional antennas. DSP is a nontrivial generalization of an existing localized deterministic broadcast protocol using omnidirectional antennas. Compared with its omnidirectional predecessor, DSP uses about the same number of forward nodes to relay the broadcast packet, while the number of forward directions that each forward node uses in transmission is significantly reduced. With the lower broadcast redundancy, DSP is more bandwidth and energy-efficient. DSP is based on 2-hop neighborhood information and does not rely on location or angle-ofarrival (AoA) information. Two special cases of DSP are discussed: the first one preserves shortest paths in reactive routing discoveries; the second one uses the directional reception mode to minimize broadcast redundancy. DSP is a localized protocol. Its expected number of forward nodes is Oð1Þ times the optimal value. An extensive simulation study using both custom and ns2 simulators shows that DSP significantly outperforms both omnidirectional broadcast protocols and existing directional broadcast protocols.

Ensuring Multi Messages Broadcasting in Mobile Ad Hoc Network using Network Coding Approach

“…Some probabilistic approaches for broadcasting using directional antennas are proposed in (Hu et al, 2003;Shen et al, 2004;Deying et al, 2008). Dai and Wu (2006) proposed a localized broadcast protocol using directional antennas, which is sourcebased. Yang et al (2007) put forward the directional network backbone for efficient broadcasting using the directional antenna model in a static manner where the backbone is suitable for any source node in the network.…”

Comparison of DP Effects in MANET AAPs with Link Error

“…The author of [6] analyzes various address auto-configuration protocols for MANET and introduces the necessary routing protocols to enable reliable detection of all conflicts. Much recent research has been conducted to reduce broadcast redundancy, since blind flooding in a wireless ad hoc networks has high cost and excessive redundancy [7]. The authors address two research approaches, probabilistic and deterministic, to obtain an efficient broadcast [7].…”

“…Much recent research has been conducted to reduce broadcast redundancy, since blind flooding in a wireless ad hoc networks has high cost and excessive redundancy [7]. The authors address two research approaches, probabilistic and deterministic, to obtain an efficient broadcast [7]. The probabilistic approach uses no or limited neighbor information and requires high broadcasts to maintain an acceptable packet delivery ratio.…”

Boundary Helps: Efficient Routing Protocol Using Directional Antennas in Cognitive Radio Networks

“…Each node has a four-directional antenna. The four directions of the antenna on each node do not need to be globally aligned, which is similar to the directional antenna model in [4]. Although the pair of P U − T X and P U − RX is active, a and b can still use the same channel to send data in sector III and sector IV , respectively.…”