摘要 :
The SwAF Air Combat Simulation Centre (FLSC) has taken an initiative called the Air Combat FOM (AC-FOM), which extends the RPR-FOM v.2.0 standard reference Federation Object Model (FOM) to better support aerial combat simulation a...
展开
The SwAF Air Combat Simulation Centre (FLSC) has taken an initiative called the Air Combat FOM (AC-FOM), which extends the RPR-FOM v.2.0 standard reference Federation Object Model (FOM) to better support aerial combat simulation and further enhance the level of interoperability between various internal and external simulation components. As part of the work of extending the Real-time Platform Reference Federation Object Model (RPR-FOM), FLSC has also identified a need to improve the way current standards support simulations of Tactical Data Links (TDL). The identified drawbacks with the current standards of simulating the Link16 TDL is that it requires a lot of effort to implement, is cost driving and is hard to use when connecting to simulation sites in other security domains. The current standards have not succeeded in attracting the Commercial off The Shelf (COTS) market in supporting it and today, as an example, very few COTS Computer Generated Forces (CGF) tools support TDL. Benefits of the current standards are however that they enable the connection with real/live systems and since Live, Virtual and Constructive (LVC) is an important requirement for the future of FLSC this needs to be catered for in future versions of TDL simulation standards. Another requirement, due to the need to offer a simulation capability and support training for other countries than Sweden, the TDL simulation standard should support the simulation of different TDLs without the requirement of making large changes to the simulation system. A more generic and "clear text" implementation that complements the current standards requirement for a link specific binary data array. This paper discusses how current standards should be updated to better support the simulation requirements of FLSC and similar sites and improve interoperability with other simulation sites while maintaining interoperability with real Tactical Data Link networks.
收起
摘要 :
The United States (US) Critical Infrastructures (CIs) are highly interconnected and each CI is a system of systems. These infrastructures are crucial to our way of life. Thus, analyzing the affects of disruptions in the CIs is imp...
展开
The United States (US) Critical Infrastructures (CIs) are highly interconnected and each CI is a system of systems. These infrastructures are crucial to our way of life. Thus, analyzing the affects of disruptions in the CIs is important for planning and risk mitigation both on a local and national level. Because of the CIs'' magnitude and complexity, we scope our analysis to present a methodology for determining the k-most critical links of a highway system, an element of the US Transportation CI. This methodology can form the basis for the analysis of the system of systems that represent the US CIs.
收起
摘要 :
The United States (US) Critical Infrastructures (CIs) are highly interconnected and each CI is a system of systems. These infrastructures are crucial to our way of life. Thus, analyzing the affects of disruptions in the CIs is imp...
展开
The United States (US) Critical Infrastructures (CIs) are highly interconnected and each CI is a system of systems. These infrastructures are crucial to our way of life. Thus, analyzing the affects of disruptions in the CIs is important for planning and risk mitigation both on a local and national level. Because of the CIs' magnitude and complexity, we scope our analysis to present a methodology for determining the k-most critical links of a highway system, an element of the US Transportation CI. This methodology can form the basis for the analysis of the system of systems that represent the US CIs.
收起
摘要 :
In modern communication systems, satellites are playing a vital role. They are providing many mandatory services such as weather forecast, mobile applications, TV telecast, military applications, etc., Government sectors, NGOs and...
展开
In modern communication systems, satellites are playing a vital role. They are providing many mandatory services such as weather forecast, mobile applications, TV telecast, military applications, etc., Government sectors, NGOs and educational institutions are keen in launching satellites for their self defined purposes. Such satellites being launched can be traced only if a perfect link budget is prepared. The transmitted power has to overcome the noises and attenuations in the space. Else, it will be a waste of investment and the satellite cannot be traced. This paper presents a perfect downlink budget for satellites operating at 2.24GHZ, S-Band frequency at LEO region.
收起
摘要 :
In modern communication systems, satellites are playing a vital role. They are providing many mandatory services such as weather forecast, mobile applications, TV telecast, military applications, etc., Government sectors, NGOs and...
展开
In modern communication systems, satellites are playing a vital role. They are providing many mandatory services such as weather forecast, mobile applications, TV telecast, military applications, etc., Government sectors, NGOs and educational institutions are keen in launching satellites for their self defined purposes. Such satellites being launched can be traced only if a perfect link budget is prepared. The transmitted power has to overcome the noises and attenuations in the space. Else, it will be a waste of investment and the satellite cannot be traced. This paper presents a perfect downlink budget for satellites operating at 2.24GHZ, S-Band frequency at LEO region.
收起
摘要 :
In modern communication systems, satellites are playing a vital role. They are providing many mandatory services such as weather forecast, mobile applications, TV telecast, military applications, etc., Government sectors, NGOs and...
展开
In modern communication systems, satellites are playing a vital role. They are providing many mandatory services such as weather forecast, mobile applications, TV telecast, military applications, etc., Government sectors, NGOs and educational institutions are keen in launching satellites for their self defined purposes. Such satellites being launched can be traced only if a perfect link budget is prepared. The transmitted power has to overcome the noises and attenuations in the space. Else, it will be a waste of investment and the satellite cannot be traced. This paper presents a perfect downlink budget for satellites operating at 2.24GHZ, S-Band frequency at LEO region.
收起
摘要 :
Unlike a traditional social network service, a tnicroblogging network like Twitter is a hybrid network, combining aspects of both social networks and information networks. Understanding the structure of such hybrid networks and to...
展开
Unlike a traditional social network service, a tnicroblogging network like Twitter is a hybrid network, combining aspects of both social networks and information networks. Understanding the structure of such hybrid networks and to predict new links are important for many tasks such as friend recommendation, community detection, and network growth models. In this paper, by analyzing data collected over time, we find that 90% of new links are to people just two hops away and dynamics of friend acquisition are also related to users' account age. Finally, we compare two popular sampling methods which are widely used for network analysis and find that ForestFire does not preserve properties required for the link prediction task.
收起
摘要 :
Unlike a traditional social network service, a tnicroblogging network like Twitter is a hybrid network, combining aspects of both social networks and information networks. Understanding the structure of such hybrid networks and to...
展开
Unlike a traditional social network service, a tnicroblogging network like Twitter is a hybrid network, combining aspects of both social networks and information networks. Understanding the structure of such hybrid networks and to predict new links are important for many tasks such as friend recommendation, community detection, and network growth models. In this paper, by analyzing data collected over time, we find that 90% of new links are to people just two hops away and dynamics of friend acquisition are also related to users' account age. Finally, we compare two popular sampling methods which are widely used for network analysis and find that ForestFire does not preserve properties required for the link prediction task.
收起
摘要 :
Wireless sensor networks supporting aggressive sampling in harsh environments (to deal with high packet loss or to provide reliable data from sensors such as 3D accelerometers and 3D gyroscopes) require transmission schemes which ...
展开
Wireless sensor networks supporting aggressive sampling in harsh environments (to deal with high packet loss or to provide reliable data from sensors such as 3D accelerometers and 3D gyroscopes) require transmission schemes which can achieve a relatively high throughput. Existing contention-based, low-power listening MAC protocols are not apt for these types of networks because their channel utilisation is considerably low. In this paper we propose a hybrid burst transmission scheme to achieve high throughput between static relay nodes, such as nodes deployed on a civil infrastructure (bridge or building). Our transmission scheme deals with link quality fluctuations and adaptively adjust the number of packets that can be transmitted in burst. Its essential features are relying on statistics that are obtained (1) offline and reflect the long-term characteristic of a link and (2) online and reflect the short-term link quality fluctuation. We experimentally compared our transmission scheme with two proposed state-of-the-art schemes in terms of throughput, transmission delay, packet loss, and energy consumption. We implemented all transmission schemes and integrated them into the TinyOS environment and the TelosB platform.
收起
摘要 :
Under the circumstances of increasingly complex and competitive market conditions, whether the enterprises can get access to accurate and relevant accounting information is the key to make the right decisions. For the hotel indust...
展开
Under the circumstances of increasingly complex and competitive market conditions, whether the enterprises can get access to accurate and relevant accounting information is the key to make the right decisions. For the hotel industry, because of the way the provision of services to achieve diversification and multi-link, the problem of their accounting information distortion, assets and other issues continue to breed, and it becomes one of the difficulties to control the internal accounting industry.Therefore, how to improve the hotel's internal accounting controls is a hot issue of the hotel management theory and practice.
收起
原文获取