Potential pitfalls of the message in message mechanism in modern 802.11 networks

Wang, Wei; Leong, Weng Kee; Leong, Ben

doi:10.1145/2643230.2643231

Cited by 3 publications

(2 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, [7] suggests that a high-power transmission could blind a low-power one at any time, even when the actual data transmission has begun. This is called Message in Message (MIM) in the literature [8,9], and it could negatively impact the performance of an interface implementing an energy-efficiency mechanism based on packet overhearing. In the following, we will provide new experimental evidence supporting that this issue still holds in modern wireless cards.…”

Section: Practical Issues 421 Impact Of Capture Effectmentioning

confidence: 99%

μ Nap: Practical micro-sleeps for 802.11 WLANs

Azcorra

Ucar

Gringoli

et al. 2017

Computer Communications

View full text Add to dashboard Cite

In this paper, we revisit the idea of putting interfaces to sleep during packet overhearing (i.e., when there are ongoing transmissions addressed to other stations) from a practical standpoint. To this aim, we perform a robust experimental characterisation of the timing and consumption behaviour of a commercial 802.11 card. We design µNap, a local standard-compliant energy-saving mechanism that leverages micro-sleep opportunities inherent to the CSMA operation of 802.11 WLANs. This mechanism is backwards compatible and incrementally deployable, and takes into account the timing limitations of existing hardware, as well as practical CSMA-related issues (e.g., capture effect). According to the performance assessment carried out through trace-based simulation, the use of our scheme would result in a 57% reduction in the time spent in overhearing, thus leading to an energy saving of 15.8% of the activity time.

show abstract

Section: Practical Issues 421 Impact Of Capture Effectmentioning

confidence: 99%

μ Nap: Practical micro-sleeps for 802.11 WLANs

Azcorra

Ucar

Gringoli

et al. 2017

Computer Communications

View full text Add to dashboard Cite

show abstract

“…PLC in IEEE 802.11 has been extensively studied both analytically (e.g., [1][2][3][4]) and experimentally (e.g., [5][6][7][8][9][10]). In the existing studies, however, only the collision between data frames is considered.…”

Section: Introductionmentioning

confidence: 99%

Acknowledgement Corruption: A New Aspect of Physical Layer Capture in IEEE 802.11 Networks

Han

Choi

Han

2018

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

Even if a collision occurs in IEEE 802.11 network, a transmission may be successfully decoded at the receiver if the signal strength of one transmission is sufficiently stronger than the other transmission. This phenomenon is called "Physical Layer Capture" (PLC). While existing works have considered PLC between data frames, in this paper we investigate the case that an ACK frame collides with the unfinished transmission of other data frames after the occurrence of PLC between data frames. As a result of this collision, the ACK frame may be corrupted and the corresponding data frame needs to be retransmitted. We call this phenomenon "ACK Corruption" (AC). We identify the characteristic of AC via extensive experiments and simulations. Our study reveals that AC can occur in all IEEE 802.11 variants and its chance is dependent upon the relative signal strength between the stations and the MCS setting used. Further, we devise a way to avoid AC occurrence and evaluate its effectiveness.

show abstract

Message in Message for Improved LoRaWAN Capacity

Attia

Heusse

Duda

2021

2021 International Conference on Computer Communications and Networks (ICCCN)

View full text Add to dashboard Cite

The Aloha-like access method is a major limiting factor in LoRaWAN networks, with only 18% of channel utilization at best. It also causes high packet losses when node deployment becomes more massive.In this paper, we propose a technique to enhance the reception process of the LoRaWAN gateways, so that channel utilization can reach values up to 35% in a single LoRaWAN cell.We investigate the benefits of concurrent and preemptive reception at the gateways: the capture effect allows to receive a frame even if it collides with a later frame, whereas Message in Message (MIM) reception allows the gateway to drop the current reception and switch to a new more powerful frame. An implementation in the NS-3 simulator allows us to assess the gains of this approach through extensive simulations.

show abstract

Potential pitfalls of the message in message mechanism in modern 802.11 networks

Cited by 3 publications

References 25 publications

μ Nap: Practical micro-sleeps for 802.11 WLANs

μ Nap: Practical micro-sleeps for 802.11 WLANs

Acknowledgement Corruption: A New Aspect of Physical Layer Capture in IEEE 802.11 Networks

Message in Message for Improved LoRaWAN Capacity

Contact Info

Product

Resources

About