Network Planning Based on Interference Alignment in Density WLANs

Peng, Min; Kai, Caihong; Cheng, Xinyi; Zhou, Qing

doi:10.1109/access.2019.2919646

Cited by 4 publications

(2 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The work on network planning is extensive; here, we discuss some recent and closely related work. The authors of [10] proposed a network-planning scheme for high-density WLANs based on Interference Alignment. To avoid interference, the proposed scheme divides the area into sub-regions and utilizes non-overlapping channels.…”

Section: Introductionmentioning

confidence: 99%

WLAN Access Points Channel Assignment Strategy for Indoor Localization Systems in Smart Sustainable Cities

Khattak

Nasralla

Marey

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The idea of smart and sustainable cities is incomplete without using information and communication technologies. Wireless Local Area Network (WLAN) plays a vital role in connecting different services, transferring data and providing indoor localization. WLAN fingerprinting technique has become the most common approach for indoor localization in smart cities. This technique utilizes received signal strength (RSS) and channel status from the installed WLAN Access Points (AP). Currently, WLAN planning relies on the site survey, which is laborious and uneconomical for large areas. The WLAN has a limited number of channels assigned in the frequency reuse strategy. An inefficient channel assignment strategy will lead towards increased interference, thus degrading the overall service. This paper proposes a WLAN channel assignment strategy for large and crowded indoor areas. The proposed scheme assigns the channels to installed APs for indoor localization in fingerprinting framework. The proposed technique ensures that the proposed AP channel assignment algorithm in our network-planning scheme mitigates interference.

show abstract

Section: Introductionmentioning

confidence: 99%

WLAN Access Points Channel Assignment Strategy for Indoor Localization Systems in Smart Sustainable Cities

Khattak

Nasralla

Marey

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…The increased bandwidth offered by channel bonding may be particularly useful for SR-WLANs to carry multimedia data without interfering with neighbouring WLANs. External interference from WLANs running at greater power levels on the same channels may affect SR-WLANs [2]. There is a risk that WLANs that interfere with SR-transmissions may begin broadcasting before the SR-transmission WLANs have finished, leading to data loss.…”

Section: Introductionmentioning

confidence: 99%

Aggregation-Based Dynamic Channel Bonding to Maximise the Performance of Wireless Local Area Networks (WLAN)

Parashar

Kashyap

Rizwan

et al. 2022

Wireless Communications and Mobile Computing

117

View full text Add to dashboard Cite

Channel bonding is considered by the IEEE 802.11ac amendment to improve wireless local area network (WLAN) performance. In this article, the channel bonding and aggregation method were proposed to increase wireless local area network performance (WLANs). It combines many channels (or lanes) to boost the capacity of modem traffic. Channel bonding is the combination of two neighbouring channels within a certain frequency band to increase wireless device throughput. Wi-Fi employs channel bonding, also known as Ethernet bonding. Channel bandwidth is equal to the uplink/downlink ratio multiplied by the operational capacity. A single 20 MHz channel is divided into two, four, or eight power channels. At 80 MHz, there are more main and smaller channels. Performance of short-range WLANs is determined through graph-based approach. The two-channel access techniques including channel bonding proposed for the IEEE 802.11ac amendment are analysed and contrasted. The novel channel sizing algorithm based on starvation threshold is proposed to expand the channel size to improve WLAN performance. Second-cycle throughput is estimated at 20 Mbps, much beyond the starvation threshold. Our test reveals access points (AP) 1, 2, and 4 have enough throughput. A four-AP WLAN with a 5-Mbps starvation threshold is presented. C160 = 1 since there is only one 160 MHz channel. MIR (3, 160 (a, a, a)) =0, indicating that AP 3’s predicted throughput is 0. The algorithm rejects the 160 MHz channel width since ST is larger than 0. The channel width in MHz is given by B =0,1 MIR. The MIR was intended to maximise simultaneous broadcasts in WLANs. The authors claim that aggregation with channel bonding outperforms so all WLAN APs should have a single-channel width. It usually outperforms fairness-based measures by 15% to 20%. Wi-Fi standards advise “channel bonding,” or using higher frequency channels. Later standards allow channel bonding by increasing bands and channel lengths. Wider channels enhance average WLAN AP throughput, but narrower channels reduce appetite. Finally, it is concluded that APs are more useful than STAs.

show abstract