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HLA (High Level Architecture) has been widely applied distributed interactive simulation field, and RTI (RunTime Infrastructure) is the supporting environment for HLA running and is distributed software system. HLA does not specify its realization. Up to now, there are different RTI release versions with different levels of functions and performances. To ensure selected RTI to satisfy simulation application...
Polling schemes in the IEEE 802 MAC layer provide some QoS support for multimedia applications above what can be provided with the contention scheme. However, in highly loaded environments, reliability and efficiency remain the main challenges for current detailed polling schemes. In this paper, we present a detailed analysis of polling medium access, and propose a novel mechanism, the Registered...
A high-density wireless environment could not avoid cell/BSS (Basic Service Set) overlapping, which may cause Co-channel interference. Such interference makes it difficult to support QoS. It is desirable that BSSs can share a single frequency channel without interference and at the same time, QoS is supported. Additional functionalities particularly in MAC layer are required to achieve interference-free...
Space network are now become a very important and necessary complementary to the ground networks, it will extend the terrestrial Internet networks to space. However, there are still many challenges exist before the space-ground integrated networks come true, and how to transport data reliably in space networks is the very difficult one among these challenges. TCP has been a robust and efficient transport...
This paper proposes the complete QoS (quality of service) architecture for integration of LEO satellite with infrastructure networks. The technology, service differentiation mechanisms, network control mechanisms and user-to-networks mechanisms are discussed. The modules required in the network elements and its integration to provide end-to-end QoS in LEO satellite networks are presented. The proposed...
This paper proposes the complete QoS (quality of service) architecture for integration of space network with infrastructure networks. The technology, service differentiation mechanisms, network control mechanisms and user-to-networks mechanisms are discussed. The modules required in the network elements and its integration to provide end-to-end QoS in Space networks are presented. The proposed solution...
The cochannel overlapping basic service sets (OBSS) wireless interference is unavoidable in a high-density overlapping BSS environment. In order to provide interference-free environment and, at the same time, Quality of Services, centralized resources coordination functionalities particularly in Medium Access Control (MAC) layer are required. The proposed scheme, based on the context of 802.11 WiFi,...
Internet, especially in the situation when network has bursty background traffic. However, it is usually difficult to evaluate the statistics of delay and delay jitter in such bursty traffic environment due to their transient queuing nature. This paper focuses on the performance behavior of delay and delay jitter at IP packet level and also their effects on the performance of voice and video packet...
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