Effective capacity analysis for underlay cognitive satellite-terrestrial networks

Ruan, Yuhan; Li, Yongzhao; Wang, Cheng-Xiang; Zhang, Rui; Zhang, Hailin

doi:10.1109/icc.2017.7997291

Cited by 15 publications

(15 citation statements)

References 19 publications

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“…Multiuser interference detection and cancelation on the user side [15,16]: Advanced precoding schemes at the transmitter side Exclusive regulation of spectrum assignment [17] Cognitive radio-based spectrum sharing between HTS and terrestrial systems with interference management [18,19] [ 20,21]: Various interference scenarios and cognitive modes in cognitive satellite terrestrial networks [22]: Cognitive zone to guarantee the primary communications [23]: A joint carrier-powerbandwidth allocation scheme [24][25][26]: Power allocation with interference-power constraints One reason for the limited throughput is the inefficient utilization of the deployed spectrum in HTS systems. To increase the bandwidth utilization efficiency, the authors in [8] proposed to dynamically allocate the orthogonal bandwidth based on different traffic demands.…”

Section: Problems Reasons Solutions Referencesmentioning

confidence: 99%

“…According to ITU-R [17], only a 500 MHz spectrum in the Ka band is exclusively available for HTS, which has been shown to be insufficient to meet the forthcoming demands for broadband satellite services. To alleviate the spectrum scarcity in future satellite communications, employing cognitive radio (CR) technology in satellite communications has emerged as a promising candidate, which is referred as a so-called cognitive satellite-terrestrial network [18,19]. For the cognitive satellite-terrestrial networks, effective resource allocation, which is a key enabling technique to alleviate the mutual interference and ensure the friendly coexistence of two networks, has also been widely studied.…”

Section: Problems Reasons Solutions Referencesmentioning

confidence: 99%

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Interference-Aware Radio Resource Management for Cognitive High-Throughput Satellite Systems

Zhang

Ruan

et al. 2019

Sensors

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By providing interactive broadband services to geographical areas underserved by terrestrial infrastructure, multi-beam satellite systems play a central role in future wireless communications. Targeting the terabit throughput requirements in satellite communications, we introduce a cognitive radio-based high-throughput satellite (HTS) system architecture where full frequency reuse is employed among beams. Moreover, by analyzing the characteristics of the considered architecture, we discuss the design challenges of radio resource management in cognitive HTS systems exposed to both intra-system and inter-system co-channel interference. Furthermore, to combat interference with low overhead, we propose a generic interference-aware resource management framework based on joint spatial division and multiplexing (JSDM). Under this framework, user grouping along with two-stage precoding is studied to achieve substantial improvement in the overall system throughput. Finally, some future research directions and challenges are also given.

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Section: Problems Reasons Solutions Referencesmentioning

confidence: 99%

Section: Problems Reasons Solutions Referencesmentioning

confidence: 99%

Interference-Aware Radio Resource Management for Cognitive High-Throughput Satellite Systems

Zhang

Ruan

et al. 2019

Sensors

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“…In the generalized-K distribution, the shadowing fading is gamma-distributed while the multipath fading is Nakagami-distributed. As illustrated in [25,26], the generalized-K model can properly characterize the satellite channel environment.…”

Section: Satellite Linksmentioning

confidence: 99%

“…To make the subsequent derivation tractable, we employ the CDF based MGF definition. In this way, the MGF of a random variable can be expressed as [26]…”

Section: Mgf Based Ser and Op Evaluationmentioning

confidence: 99%

Performance evaluation for underlay cognitive satellite-terrestrial cooperative networks

Ruan

Wang

et al. 2018

Sci. China Inf. Sci.

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With the continuously increasing demand for broadband applications and services, underlay cognitive satellite-terrestrial networks, enabling to accommodate better wireless services within the scarce spectrum, have attracted tremendous attentions recently. In this network, satellite communications are allowed to operate in the frequency bands allocated to terrestrial networks under the interference constraints imposed by terrestrial network, which may lead to a performance degradation of the satellite network. To guarantee the performance of the primary terrestrial network as well as the secondary satellite network, we introduce the cooperation into cognitive satellite-terrestrial networks and investigate the performance of the new framework, i.e., cognitive satellite-terrestrial cooperative network (CSTCN). Specifically, by restricting the transmit power of satellite communications with interference power constraints imposed by terrestrial communications, we firstly obtain the received signal-to-interference-plus-noise ratio (SINR) of the considered network. Moreover, by employing the moment generating function (MGF) approach, closed-form expressions for symbol error rate (SER) and outage probability (OP) of the considered cognitive network are derived. The analytical results obtained in this paper can provide theoretical support for optimizing the performance of satellite-terrestrial networks.

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“…For example, with single antenna deployed at the cognitive terrestrial BS, a power allocation scheme and the impact of the spatial distribution of primary transmitters on the cognitive networks were studied in [17]. In [18], the authors studied the outage performance of CSTN with interference temperature constraint at the primary satellite user.…”

Section: Introductionmentioning

confidence: 99%

Coexistence and Performance Limits for the Cognitive Broadband Satellite System and mmWave Cellular Network

Zhang

Yan

et al. 2020

IEEE Access

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The application of millimeter wave (mmWave) spectrum for the next generation broadband communications has received significant attention recently. In this work, we investigate the performance limits for the coexistence of the geostationary orbit (GEO) broadband satellite networks and terrestrial mmWave cellular networks. Based on the assumption that the statistical channel state information (SCSI) is available at the terrestrial base station (BS), we propose a virtual uplink based transmit beamforming (BF) algorithm to maximize the ergodic capacity of the terrestrial user while satisfying the interference probability constraint of the satellite users. Furthermore, we derive the closed-form expressions for the outage probability (OP) and ergodic capacity (EC) of the terrestrial user. Besides, the asymptotic OP expression at high signal-to-noise ratio (SNR) is also developed in terms of diversity order and array gain of the terrestrial user. Finally, numerical results are given to confirm the validity of the proposed BF scheme and theoretical derivations, and reveal the impact of key parameters on the performance of the terrestrial user coexisting with the multiple satellite users.

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Effective capacity analysis for underlay cognitive satellite-terrestrial networks

Cited by 15 publications

References 19 publications

Interference-Aware Radio Resource Management for Cognitive High-Throughput Satellite Systems

Interference-Aware Radio Resource Management for Cognitive High-Throughput Satellite Systems

Performance evaluation for underlay cognitive satellite-terrestrial cooperative networks

Coexistence and Performance Limits for the Cognitive Broadband Satellite System and mmWave Cellular Network

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