A Time Slot Reservation in Modified TDMA-Based Ad Hoc Networks with Directional Antennas

Li, Yuan; Sun, Benhua; Luo, Xing; Xiong, Naixue

doi:10.1155/2013/636797

Cited by 1 publication

(2 citation statements)

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“…TDMA based reservation mechanism is exploited but still it does not improve time slot selection for reservation. The novel idea of time slot utilization proposed in [20] does not consider the impact of hidden terminal problem and it lacks effectiveness in session admission. Considering the above discussed facts, our proposed method exhibits the flow of admission in an efficient reservation, combined with a backup path mechanism.…”

Section: Background and Related Workmentioning

confidence: 99%

“…In addition, contention based protocols, such as carrier sensing multiple accesses with collision avoidance (CSMA/CA), and hybrid protocols, such as TDMA protocol based on contention and reservation [18], exist. The reservation based TDMA protocols have several advantages over contention based protocols, of which conflict free and maximum spatial reuse efficiency is acquainted to the domain [14, 19, 20]. For network with dynamic topology FPRP is a suitable one.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Primary Path Reservation Using Enhanced Slot Assignment in TDMA for Session Admission

Chandrasekaran¹,

Savarimuthu²,

Elumalai

et al. 2015

The Scientific World Journal

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Mobile ad hoc networks (MANET) is a self-organized collection of nodes that communicates without any infrastructure. Providing quality of service (QoS) in such networks is a competitive task due to unreliable wireless link, mobility, lack of centralized coordination, and channel contention. The success of many real time applications is purely based on the QoS, which can be achieved by quality aware routing (QAR) and admission control (AC). Recently proposed QoS mechanisms do focus completely on either reservation or admission control but are not better enough. In MANET, high mobility causes frequent path break due to the fact that every time the source node must find the route. In such cases the QoS session is affected. To admit a QoS session, admission control protocols must ensure the bandwidth of the relaying path before transmission starts; reservation of such bandwidth noticeably improves the admission control performance. Many TDMA based reservation mechanisms are proposed but need some improvement over slot reservation procedures. In order to overcome this specific issue, we propose a framework—PRAC (primary path reservation admission control protocol), which achieves improved QoS by making use of backup route combined with resource reservation. A network topology has been simulated and our approach proves to be a mechanism that admits the session effectively.

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Section: Background and Related Workmentioning

confidence: 99%