Abstract
Recently, Light fidelity (LiFi) is proposed as a high-speed wireless communication technology. A LiFi access point provides the service in an area of a few square meters known as LiFi attocells. Therefore, by utilizing frequency reuse, LiFi networks provide a high spatial spectral efficiency. Unfortunately, beside to uplink and mobility problems, the LiFi networks suffer more difficulties with increasing of the number of mobile devices. As a solution, hybrid LiFi and radio frequency (RF) networks are proposed. In this article, a hybrid network, that combines LiFi with RF Wireless Gigabit Alliance (WiGig) networks, is proposed. The WiGig access points will provide gigabit-per-second data rates as a result of the availability of large bandwidth at the millimeter wave (mmWave) frequency ranges. Such hybrid networks need an efficient load balancing (LB) scheme. In this article, two modified versions of the separate optimization algorithm (SOA) are proposed; Assign WiGig First SOA (AWFS) algorithm and Consecutive Assign WiGig First SOA (CAWFS) algorithm. The simulation results show that the two proposed algorithms offer better achievable data rates and outage probability performances compared with the SOA algorithm.
Highlights
T HE expanding number of portable devices with multimedia and data-demanding applications, considering the restricted accessibility of the radio frequency (RF) range, implies that current mobile systems are at their most extreme capacity
We propose an ultra-high capacity indoor WLAN network based on integrating between the Light fidelity (LiFi), using the visible light band, and the Wireless Gigabit Alliance (WiGig), using the millimeter wave (mmWave) band, instead of traditional WiFi
PROPOSED LOAD BALANCING ALGORITHMS In this paper, we propose an ultra-high capacity indoor WLAN network based on integrating between the LiFi and the WiGig using the mmWave band instead of traditional WiFi
Summary
T HE expanding number of portable devices with multimedia and data-demanding applications, considering the restricted accessibility of the radio frequency (RF) range, implies that current mobile systems are at their most extreme capacity. We propose an ultra-high capacity indoor WLAN network based on integrating between the LiFi, using the visible light band, and the WiGig, using the mmWave band, instead of traditional WiFi. In the previous hybrid LiFi/RF network, the WiFi network provides the desired QoS to the users with low-level optical signals [5], [6] and [7]. Each user should be assigned to only one AP, LiFi or WiGig. So, load balancing (LB) scheme should be utilized. Load balancing (LB) scheme should be utilized Due to both the limited size of LiFi attocells and limited number of users in WiGig AP, fair and efficient LB in a hybrid LiFi/WiGig network can be a challenge.
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