2014 23rd International Conference on Computer Communication and Networks (ICCCN) 2014
DOI: 10.1109/icccn.2014.6911878
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Abstract: Physical carrier sensing (PCS) is an effective mechanism to reduce the collision and interference caused by hidden terminals in wireless ad hoc networks, which allows nodes to be separated by a silent margin. However, potential simultaneous transmissions may be suppressed in this silent margin due to exposed terminal problem. As a consequence, PCS mechanism affects the network performance in two opposite ways. In this paper, we present an analytical model for deriving the optimal carrier sensing threshold to m… Show more

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Cited by 8 publications
(5 citation statements)
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References 12 publications
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“…Furthermore, Zhang et al [172] introduce a throughput penalty function to characterize the impact of each range on throughput, and design an iterative algorithm based on statistical channel state to dynamically adjust the physical carrier sensing threshold. Yang et al [115] study the impact of transmit power and the physical carrier sensing threshold on the network capacity and points out that when the physical carrier sensing range just covers the interference range of the receiver, the network throughput can reach the optimal approximation.…”
Section:  Asynchronous Time Reservationmentioning
confidence: 99%
See 1 more Smart Citation
“…Furthermore, Zhang et al [172] introduce a throughput penalty function to characterize the impact of each range on throughput, and design an iterative algorithm based on statistical channel state to dynamically adjust the physical carrier sensing threshold. Yang et al [115] study the impact of transmit power and the physical carrier sensing threshold on the network capacity and points out that when the physical carrier sensing range just covers the interference range of the receiver, the network throughput can reach the optimal approximation.…”
Section:  Asynchronous Time Reservationmentioning
confidence: 99%
“…That is, when a node successfully receives the ACK frame several times (e.g., 16 times), the CCA threshold advances one level; when no ACK frame is received, the CCA threshold decreases one level. The range of carrier sensing and communication interference has also been examined in [113]- [115]. It is proposed that the radius of the optimal carrier sensing range is equal to the sum of the range of communication interference and the distance between the transmitter and receiver.…”
Section: A Introduction To Spatial Reuse Enhancementsmentioning
confidence: 99%
“…However, the problem of IEEE 802.11 WLAN in which the user performance significantly degrades when the network becomes dense has become well known, and the research community has proposed many different proposals to improve the system spectral efficiency of the WLANs. One line of research has focused on deriving analytical models to find the optimal CST taking account of environmental factors such as node density [3][4][5]. However, as we will discuss in the next section, a common CST cannot reuse space efficiently, as the proper CST depends on the location of the receivers as well as the senders.…”
Section: Related Workmentioning
confidence: 99%
“…Naturally, the choice of CST has a significant impact on the system performance [4]. Many proposals have been made in which the CST is dynamically adjusted to achieve the best performance [5,6]. However, since alleviating one problem aggravates another, there is a limit to how much we can achieve by adjusting the CST (we show that through a simple experiment in the next section).…”
Section: Related Workmentioning
confidence: 99%