Simulation of elimination of Co-Channel interference in Hybrid Terrestrial-Satellite Mobile Communication System using adaptive Beam-Forming technique

Shah, Kamran; Wang, Yong; Rehman, Waheed Ur; Khan, Fahad Ali

doi:10.1109/ibcast.2015.7058570

Cited by 6 publications

(9 citation statements)

References 4 publications

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“…Similarly, in [133,134], it was proposed that satellites provide direct cellular access to users in rural areas, whereas terrestrial cellular networks provide coverage to urban areas. Techniques for avoiding co-channel interference between the two systems, based on using adaptive beamforming at the satellites, were also proposed [133,134]. In [135], challenges facing direct satellite access for 5G UEs were discussed.…”

Section: Direct Satellite Accessmentioning

confidence: 99%

A Key 6G Challenge and Opportunity - Connecting the Base of the Pyramid: A Survey on Rural Connectivity

Yaacoub¹,

Alouini²

2020

Preprint

149

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Providing connectivity to around half of the world population living in rural or underprivileged areas is a tremendous challenge, but also a unique opportunity. Access to the internet would provide the population living in these areas a possibility to progress on the educational, health, environment, and business levels. In this paper, a survey of technologies for providing connectivity to rural areas, and that can help address this challenge, is provided. Although access/fronthaul and backhaul techniques are discussed in the paper, it is noted that the major limitation for providing connectivity to rural and underprivileged areas is the cost of backhaul deployment. In addition, energy requirements and cost efficiency of the studied technologies are analyzed. In fact, the challenges faced for deploying an electricity network, as a prerequisite for deploying communication networks, are huge in these areas and they are granted an important share of the discussions in this paper. Furthermore, typical application scenarios in rural areas are discussed, and several country-specific use cases are surveyed. The main initiatives by key international players aiming to provide rural connectivity are also described. Moreover, directions for future evolution of rural connectivity are outlined in the paper. Although there is no single solution that can solve all rural connectivity problems, building gradually on the current achievements in order to reach ubiquitous connectivity, while taking into account the particularities of each region and tailoring the solution accordingly, seems to be the most suitable path to follow.

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Section: Direct Satellite Accessmentioning

confidence: 99%

A Key 6G Challenge and Opportunity - Connecting the Base of the Pyramid: A Survey on Rural Connectivity

Yaacoub¹,

Alouini²

2020

Preprint

149

View full text Add to dashboard Cite

show abstract

“…In fact, it was suggested in [132] that if wired fiber and DSL deployments start from high density areas and move outwards, then satellite connectivity can provide access starting from the outside inwards, until wired deployments catch up. Similarly, in [133,134], it was proposed that satellites provide direct cellular access to users in rural areas, whereas terrestrial cellular networks provide coverage to urban areas. Techniques for avoiding co-channel interference between the two systems, based on using adaptive beamforming at the satellites, were also proposed [133,134].…”

Section: Direct Satellite Accessmentioning

confidence: 99%

“…Similarly, in [133,134], it was proposed that satellites provide direct cellular access to users in rural areas, whereas terrestrial cellular networks provide coverage to urban areas. Techniques for avoiding co-channel interference between the two systems, based on using adaptive beamforming at the satellites, were also proposed [133,134]. In [135] to cover the same area as the satellites move, the UEs have to be handed over between beams and/or satellites every few seconds [135].…”

Section: Direct Satellite Accessmentioning

confidence: 99%

A Key 6G Challenge and Opportunity—Connecting the Base of the Pyramid: A Survey on Rural Connectivity

2020

View full text Add to dashboard Cite

show abstract

“…In fact, it was suggested in [109] that if wired fiber and DSL deployments start from high density areas and move outwards, then satellite connectivity can provide access starting from the outside inwards, until wired deployments catch up. Similarly, in [110,111], it was proposed that satellites provide direct cellular access to users in rural areas, whereas terrestrial cellular networks provide coverage to urban areas. Techniques for avoiding co-channel interference between the two systems, based on using adaptive beamforming at the satellites, were also proposed [110,111].…”

Section: Direct Satellite Accessmentioning

confidence: 99%

A Key 6G Challenge and Opportunity - Connecting the Remaining 4 Billions: A Survey on Rural Connectivity

Yaacoub¹,

Alouini²

2019

Preprint

View full text Add to dashboard Cite

DRAFT 4) Hyper Connected: This scenario corresponds to people enjoying state-of-the-art connectivity, e.g., at least 4G and possibly 5G cellular connectivity, and/or with high speed fixed DSL or FTTH or FTTN connectivity. These subscribers typically live in urban areas, and it is extremely difficult to find them in rural areas, due to the numerous barriers discussed previously. This paper surveys the literature aiming to provide basic connectivity to the unconnected population, or aiming to increase the connectivity level of those with basic connectivity ("Under Hence, the challenges for FSO in space are less critical, and indeed significantly better performance can be achieved, especially due to the fact that the optical signal is not traversing the atmosphere. In 2008, an optical inter-satellite link achieved a data rate transmission of 5.6 Gbps for distances up to 5, 000 km in the European Data Relay satellite System (EDRS). Newer terminals can transmit at a data rate of 1.8 Gbps for distances up to 45, 000 km. The intersatellite Ka band link achieved 300 Mbps [44]. In EDRS, LEO satellites relay the data from ground stations to GEO satellites using FSO for the GEO-LEO satellite communication, and RF bands for communication with the ground stations (similarly to the satellite-satellite Ka link, the satellite-ground Ka link achieved 300 Mbps) [44]. Some of the recent satellite constellations discussed in Section II-E, e.g., Starlink, are also expected to use FSO for its inter-satellite communication [45,46,47]. D. HAPs/Drones/UAVs/BalloonsTo solve the coverage problem in large rural areas without relying on the deployment of costly wired infrastructure for backhaul, HAPs and UAVs are generally recommended [48].UAVs are proposed in [49] to provide backhaul connectivity for ground 5G base stations. A steering algorithm to allow the antennas of the UAV and the ground BS to be dynamically steered towards each other is proposed in [49], and tested via an experimental setup. In[50], a multihop network of HAPs is proposed for providing backhaul connectivity to TVWS deployments in rural areas. The HAPs communicate with each other using mmWave frequencies, and with the ground stations using FSO.An interference alignment scheme to maximize the sum-rate capacity of HAPs communicating with GSs is proposed in [51]. The scheme assumes M HAP drones and N GSs, with no CSI at the HAPs. A tethered balloon with (M − 1) × (N − 1) antennas is used as a decode and forward (DF) relay with half-duplex operation: The HAPs transmit their data to the GSs first, then the tethered balloon relays the data after performing pre-coding [51].Aerostats filled with lighter than air gas are tethered to the ground and used to provide connectivity to rural areas in [52]. Although these tethered aerostats can be used to provide backhaul connectivity by communicating with each other using directive antennas, they were also used in [52] to provide fronthaul WiFi access by using high gain omnidirectional antennas.

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Simulation of elimination of Co-Channel interference in Hybrid Terrestrial-Satellite Mobile Communication System using adaptive Beam-Forming technique

Cited by 6 publications

References 4 publications

A Key 6G Challenge and Opportunity - Connecting the Base of the Pyramid: A Survey on Rural Connectivity

A Key 6G Challenge and Opportunity - Connecting the Base of the Pyramid: A Survey on Rural Connectivity

A Key 6G Challenge and Opportunity—Connecting the Base of the Pyramid: A Survey on Rural Connectivity

A Key 6G Challenge and Opportunity - Connecting the Remaining 4 Billions: A Survey on Rural Connectivity

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