Outage probability analysis of multi-hop cooperative satellite-terrestrial network

Iqbal, Arif; Ahmed, K.M.

doi:10.1109/ecticon.2011.5947821

Cited by 12 publications

(7 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Without loss in generality, fast fading is assumed to be approximately constant over the subcarriers of a given RB, and independent identically distributed (i.i.d) over RBs. 2) Back-hauling Channel Model: We assume that the BH channel gain between x and y stations, i.e., between GW (x = w) HAP l (y = l) for the main BH link, and between satellite station (x = 0) and HAP l (y = l) for the alternative BH link, can be given as [15], [22], [24], [25]…”

Section: ) Front-hauling Channel Modelmentioning

confidence: 99%

“…It can be noticed that the optimization problem (22)-(24) is convex problem in P S su,n except constraints (22) and (24). Therefore, the goal is to convert these constraints into convex ones in terms of P S su,n in order to solve the power optimization problem efficiently.…”

Section: A Near Optimal Solutionmentioning

confidence: 99%

“…Now it can be seen that the objective function in (25) is a concave function in terms of P S su,n . 2) Approximation of Constraint (24): : We can approximate this constraint by ensuring that the data rate from HAP l to any associated users u is smaller that the average BH constraint.…”

Section: ) Approximation Of the Objective Functionmentioning

confidence: 99%

“…Now, our power allocation optimization problem given in (22)- (24) becomes convex problem in respect to P S su,n for fix associations and HAPs' locations. Thus, the duality gap of our convex power allocation problem in OFDMA system is zero.…”

Section: ) Approximation Of the Objective Functionmentioning

confidence: 99%

See 3 more Smart Citations

Improvement of the Global Connectivity Using Integrated Satellite-Airborne-Terrestrial Networks With Resource Optimization

Alsharoa

Alouini

2020

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

In this paper, we propose a novel wireless scheme that integrates satellite, airborne, and terrestrial networks aiming to support ground users. More specifically, we study the enhancement of the achievable users' throughput assisted with terrestrial base stations, high altitude platforms (HAPs), and satellite station. The goal is to optimize the resource allocations and the HAPs' locations in order to maximize the users' throughput. In this context, we propose to solve the optimization problem in two stages; first a short-term stage and then a long-term stage. In the short-term stage, we start by proposing a near optimal solution and low complexity solution to solve the associations and power allocations. In the first solution, we formulate and solve a binary linear optimization problem to find the best associations and then using Taylor expansion approximation to optimally determine the power allocations. While in the second solution, we propose a low complexity approach based on frequency partitioning technique to solve the associations and power allocations. One the other hand, in the long-term stage, we optimize the locations of the HAPs by proposing an efficient algorithm based on a recursive shrink-and-realign process. Finally, selected numerical results show the advantages provided by our proposed optimization scheme.

show abstract

Section: ) Front-hauling Channel Modelmentioning

confidence: 99%

Section: A Near Optimal Solutionmentioning

confidence: 99%

Section: ) Approximation Of the Objective Functionmentioning

confidence: 99%

Section: ) Approximation Of the Objective Functionmentioning

confidence: 99%

See 2 more Smart Citations

Improvement of the Global Connectivity Using Integrated Satellite-Airborne-Terrestrial Networks With Resource Optimization

Alsharoa

Alouini

2020

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

show abstract

“…Receiver‐based cooperative diversity can be applied to the land mobile satellite (LMS) systems' downlink to improve communication. Receiver‐based cooperative diversity can be classified according to the cooperating relay node behavior before forwarding its received signal, for example, amplify‐and‐forward (AF) , decode‐and‐forward (DF) , and coded cooperation , and by the various schemes for selecting the cooperating relay nodes, for example, single relay selection , multiple relay selection (MRS) , incremental relay selection (IRS) , and all‐relay participation . In this paper, both classification types are considered for the LMS system.…”

Section: Introductionmentioning

confidence: 99%

Predictive relay-selection cooperative diversity in land mobile satellite systems

Awoyemi

Walingo

Takawira

2015

Int. J. Satell. Commun. Network.

View full text Add to dashboard Cite

Abstract-Cooperative diversity protocols promise a new dimension of diversity that provides better communication by engaging nearby relays in forming a 'virtual' array of antennas for combined signal transmission. The current incremental cooperative diversity algorithms incrementally select best relay(s) to cooperate based on the channel quality reported by the relays. However, the algorithms do not take into consideration the fact that the chosen best relay(s) at estimation may not always be best at the time of communication. This is due to the time delay between the relay selection and its transmission of signal (problem of outdated Channel Quality Information). To solve this problem, the concept of channel prediction is introduced and employed whereby each relay determines a predicted value of its Channel Quality Information (CQI) based on its past measurements. The paper therefore develops a novel predictive relay-selection (PRS) cooperative diversity model which seeks to improve Land Mobile Satellite (LMS) communication through prediction protocols. In the model, the chosen best relay is the one with the best predicted CQI value instead of the traditional outdated one. Performance analysis of outage probability and average bit error probability for the newly developed PRS cooperation shows that the PRS cooperation is better than direct and outdated CQI relay communication.

show abstract

Cooperative Beamforming for Hybrid Satellite-Terrestrial Relay Networks

Tao

Lin

Yin

et al. 2018

Procedia Computer Science

View full text Add to dashboard Cite

Outage probability analysis of multi-hop cooperative satellite-terrestrial network

Cited by 12 publications

References 15 publications

Improvement of the Global Connectivity Using Integrated Satellite-Airborne-Terrestrial Networks With Resource Optimization

Improvement of the Global Connectivity Using Integrated Satellite-Airborne-Terrestrial Networks With Resource Optimization

Predictive relay-selection cooperative diversity in land mobile satellite systems

Cooperative Beamforming for Hybrid Satellite-Terrestrial Relay Networks

Contact Info

Product

Resources

About