Beam hopping in multi-beam broadband satellite systems: System simulation and performance comparison with non-hopped systems

Anzalchi, J.; Couchman, A.; Gabellini, P.; Gallinaro, G.; D'Agristina, L.; Alagha, Nader; Angeletti, Piero

doi:10.1109/asms-spsc.2010.5586860

Cited by 76 publications

(53 citation statements)

References 3 publications

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“…The hopping pattern follows a time-spatial transmission plan with a pre-defined repetition rate or 'window' length [8], which is called BHW in this paper. Note that this is the plan or decision period, not the hopping period, while the hopping period is the length of one slot based on the modern antenna technology [10].…”

Section: Beam Hopping Schemementioning

confidence: 99%

“…Several United States Patents [4][5][6] are also on the topic, greatly promoting the related researches. Pecorella proposes an implementable system scheme of beam hopping for DVB-RCS in [7] while J. Anzalchi performs detailed system simulation and performance comparison with non-hopped systems in [8]. Jiang proposes two novel capacity optimization approaches considering the power and carrier allocation in [9], and shows that BH system turns out better than multi-beam non-orthogonal frequency reuse system especially for non-real time services.…”

Section: Introductionmentioning

confidence: 99%

“…One possible solution of the full spectrum reutilization is to separate the cells illuminated by small beams in time domain (one beam illuminates only one cell at one time), which is called beam hopping (BH) [1][2][3][4][5][6][7][8][9][10][11]. Additional welfare of this technology is that less payload is needed to perform the same communication task, because less beams are needed.…”

Section: Introductionmentioning

confidence: 99%

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QoS-equilibrium slot allocation for beam hopping in broadband satellite communication systems

Han

Zheng

Huang³

et al. 2015

Wireless Netw

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In broadband satellite communication systems, beam hopping (BH) is more and more welcome to compensate the low-power-efficiency wide beam and the lowspectrum-efficiency multiple spot beams simultaneously. As a flexible coverage method, BH demands efficient hopping strategy to reach the desired quality of service (QoS). In this paper, we consider the QoS equilibrium, in particular the delay fairness, among different cells illuminated by one hopping beam through designing the hopping strategy on the condition of capacity satisfaction. Due to the physical limitation that hopping speed is much slower than packet arrival speed, the ideal first-come-first-serve packet scheduling is not realizable, which compels us to pursuit the optimal slot scheduling instead. In this paper, we consider a long-term delay fairness problem by perperiod slot allocation for BH, using instantaneous and statistical information. To deal with the complex stochastic programming problem, we introduce the time-sharing principle to uncouple the variables and adopt stochastic gradient theory to deduce the suboptimal close-form solution. Our contributions are in three folds: firstly, it is the first time to consider the delay fairness not the traditional capacity fairness for BH; secondly, a general per-period decision scheme is proposed for the unique slot allocation in the perspective of queuing; thirdly, a suboptimal closeform solution for the per-period slot allocation is obtained, which could also cope with burst traffic cases. In simulation, we verify our method's advantage in terms of delay fairness comparing with the existing similar works.

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Section: Beam Hopping Schemementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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QoS-equilibrium slot allocation for beam hopping in broadband satellite communication systems

Han

Zheng

Huang³

et al. 2015

Wireless Netw

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“…Note that in obtaining R nn using , we implicitly assume continuous transmission, which is in line with the satellite broadcast standards DVB‐S2 and DVB‐Sx. Other transmission modes such as beam hopping and burst transmission are more relevant in broadband satellite communication, which falls outside the scope of this paper.…”

Section: Assumptions and Signal Modelmentioning

confidence: 99%

“…Other transmission modes such as beam hopping 20 and burst transmission 21 are more relevant in broadband satellite communication, which falls outside the scope of this paper.…”

Section: Assumptions and Signal Modelmentioning

confidence: 99%

Reduced complexity satellite broadcast receiver with interference mitigation in correlated noise

Abu‐Shaban

Mehrpouyan

Shankar

et al. 2018

Satell Commun Network

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Summary The recent commercial trends towards using smaller dish antennas for satellite receivers and the growing density of broadcasting satellites necessitate the application of robust adjacent satellite interference cancellation schemes. This orbital density growth along with the wider beamwidth of a smaller dish have imposed an overloaded scenario at the satellite receiver, where the number of transmitting satellites exceeds the number of receiving elements at the dish antenna. To ensure successful operation in this practical scenario, we propose a satellite receiver that enhances signal detection from the desired satellite by mitigating the interference from neighboring satellites. Towards this objective, we propose an enhanced list‐based group‐wise search detection (E‐LGSD) receiver under the assumption of spatially correlated additive noise. To further enhance detection performance, the proposed satellite receiver utilizes a newly designed whitening filter to remove the spatial correlation among the noise parameters, while also applying a preprocessor that maximizes the signal‐to‐interference‐plus‐noise ratio. We exploit the structure of this filter and propose a reduced complexity LGSD (RC‐LGSD) receiver. Extensive simulations under practical scenarios show that the proposed receiver enhances the performance of satellite broadcast systems in the presence of adjacent satellite interference compared with existing methods. Also, under pointing error, RC‐LGSD exhibits similar behavior to that of the optimum receiver.

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Cognitive beamhopping for spectral coexistence of multibeam satellites

Sharma

Chatzinotas

Ottersten

2014

Satell Commun Network

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SUMMARYHerein, the spectral coexistence scenario of two multibeam satellites over a common coverage area is studied where a primary satellite produces larger beams while a secondary satellite has smaller beams. A novel cognitive beamhopping satellite system is proposed assuming that the secondary gateway is aware of the primary's beamhopping pattern. The performance of the proposed system is evaluated and compared with that of conventional multibeam and beamhopping systems in terms of throughput. It is shown that the proposed system significantly enhances the Spectral Efficiency (SE) in comparison to other systems. Furthermore, a power control technique is applied on the secondary transmission in order to adhere to the primary's interference constraint. It is noted that the total SE increases with the number of secondary users in the full frequency reuse approach. Moreover, the Exclusion Zone (EZ) principle is applied to exploit the regions in which the secondary system can operate without causing harmful interference to the primary system. It is shown that the EZ radius of 8.5 dB is sufficient to protect the primary system perfectly with a significant gain in SE. Finally, it is shown that power control and the EZ methods are suitable for lower and higher values of secondary aggregated interference respectively.

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Beam hopping in multi-beam broadband satellite systems: System simulation and performance comparison with non-hopped systems

Cited by 76 publications

References 3 publications

QoS-equilibrium slot allocation for beam hopping in broadband satellite communication systems

QoS-equilibrium slot allocation for beam hopping in broadband satellite communication systems

Reduced complexity satellite broadcast receiver with interference mitigation in correlated noise

Cognitive beamhopping for spectral coexistence of multibeam satellites

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