A Study on Hidden Receiver Problem in Mobile Ad Hoc Networks

Lo, Chun-Chih; Kuo, Chao-Yu; Huang, Yi‐Hung; Lin, Kuan‐Cheng; Chu, Yen-Ping

doi:10.1109/icwmc.2008.43

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…Lo et al [6], Dong et al [7] and Qifei et al [8] introduced an additional packet in traditional RTS/CTS handshake called Explicit Blocking Notification (EBN) in Wireless Ad Hoc Network and MANETs. They proposed a novel EBN scheme to address hidden receiver problem.…”

Section: Related Workmentioning

confidence: 99%

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Mitigating false blocking problem in wireless sensor networks

Chong

Drieberg

Jeoti

2012

2012 4th International Conference on Intelligent and Advanced Systems (ICIAS2012)

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The hidden terminal problem in wireless sensor network (WSN) is one of the main causes of collision. Even though RTS/CTS handshaking has been implemented in CSMA/CA standard to alleviate the problem, it does not solve the collision completely. Moreover, it induces an issue called false blocking problem. Unaware of a busy status of a hidden receiver, adjacent nodes which can be potential senders will keep transmitting RTS packets to obtain a response but in vain. These RTS retransmission will cause other nodes which overhear the RTS packets blindly defer, causing them to be falsely blocked. The false blocking problem can exhaust scarce energy and degrade the network performance especially in a large distributed sensor network with heavy traffic condition. In this paper, we propose and evaluate a scheme that combines both the Block Notification (BN) and Ready-to-Send (RS) packets. The BN packet is used to notify the deferred state to adjacent nodes in order to avoid unnecessary backoff and RTS retransmissions. The RS packet, on the other hand, is used to validate the received RTS packets and in case the BN packets are not received, the node can verify the RTS packets before going to the deferred state too. Simulation results have shown that the proposed scheme can overcome the false blocking problem by reducing both the number of unnecessary RTS retransmissions and energy consumed.

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Section: Related Workmentioning

confidence: 99%

“…Currently IEEE 802.11 standard uses CSMA/CA along with a variant of MACAW [6][7][8]. However, the RTS/CTS mechanism is no guarantee of solving the hidden terminal problem effectively because it can cause a problem named false blocking [9].…”

Section: Introductionmentioning

confidence: 98%

Mitigating false blocking problem in wireless sensor networks

Chong

Drieberg

Jeoti

2012

2012 4th International Conference on Intelligent and Advanced Systems (ICIAS2012)

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“…This section briefly describes the Ready-To-Send (RS) and BN schemes [9][10][11][12] which were proposed previously to overcome the false blocking problem. Referring to Fig.…”

Section: Default Bn Scheme Without Strategic Nodesmentioning

confidence: 99%

A Dynamic Blocking Notification (BN) Scheme with Strategic Nodes for Wireless Ad Hoc Networks

Chong

Drieberg

Jeoti

2014

2014 IEEE 79th Vehicular Technology Conference (VTC Spring)

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The traditional RTS/CTS handshaking has been widely adopted in wireless ad hoc networks to reduce the hidden terminal problem. However, the handshaking induces the false blocking problem where adjacent nodes are deferred unnecessarily by overhearing the unsuccessful RTS packets. To mitigate these, the Blocking Notification (BN) scheme was proposed previously. In the BN scheme, the hidden and exposed receivers will broadcast the BN packets to inform adjacent nodes of their deferring status to avoid any incoming RTS packets which will not be replied by them. Nevertheless, the BN scheme itself can potentially incur redundant BN packet transmissions, energy wastage and packet collisions. The effectiveness of the BN scheme depends critically on the judicious transmission and successful reception of BN packet. In this paper, we propose an improved BN scheme that is able to dynamically assign strategic nodes the right to broadcast the BN packets. The improved BN scheme with strategic nodes attempts to minimize the BN packet transmissions and avoid collisions while maximizing their successful receptions at the intended nodes. This ensures higher energy efficiency, which is critical in ad hoc networks. Moreover, the proposed BN scheme can be deployed in any arbitrary network topology instead of a simplistic linear topology as assumed in previous works. Simulation results have shown that the proposed BN scheme with strategic nodes can significantly reduce the number of BN packet transmissions and provide energy savings of up to 60%.

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“…Multi channel systems are proposed on Ad-Hoc networks using the WLAN, in order to avoid interference due to hidden terminal problem [7]- [11] and increase system throughput. Although such studies are based on the theoretical evaluation using computer simulation, there are some issues for achieving the multi-hop system in the actual device and system.…”

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confidence: 99%

Power Saving Control Method for Battery-Powered Portable Wireless LAN Access Points in an Overlapping BSS Environment

Ogawa¹,

Hiraguri

Nishimori

et al. 2011

IEICE Trans. Commun.

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SUMMARYThis paper proposes a new Ad-Hoc network system which comprises the multiple relay access points (APs) with multi channels. AdHoc network systems are recently proposed and incorporated for the communication infrastructure, which relays wireless transmission among access points (APs) in wireless LAN (WLAN) system. System throughput is decreased due to hidden terminal problem when only a single channel is used for the Ad-Hoc network. In order to solve this problem, a new system with multi channels is proposed. However, even if the multi channels are employed, the co-and/or adjacent-channel interference occurs due to hidden terminal problem and multiple APs in a limited space, when considering a simultaneous transmit and reception at the relay AP. In this paper, we develop an Ad-Hoc network testbed which can reduce and avoid coand/or adjacent-channel interference by using vertically arranged antenna configuration and distributed channel allocation scheme. Moreover, the effectiveness of our testbed is clarified by applying actual WLAN signals.

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A Study on Hidden Receiver Problem in Mobile Ad Hoc Networks

Cited by 8 publications

References 3 publications

Mitigating false blocking problem in wireless sensor networks

Mitigating false blocking problem in wireless sensor networks

A Dynamic Blocking Notification (BN) Scheme with Strategic Nodes for Wireless Ad Hoc Networks

Power Saving Control Method for Battery-Powered Portable Wireless LAN Access Points in an Overlapping BSS Environment

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