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Device to Device (D2D) multicast communication is an effective method for local transmission. In this paper, a joint power and resource allocations scheme is proposed to maximize the number of accessed D2D groups while minimizing the total terminal transmission power for D2D underlay multicast communication. Since the derived optimization is a mixed integer nonlinear programming problem with high...
This paper proposes a novel Gain-Aware Uplink-Downlink(GAUD) jointly resource allocation scheme to maximize the Device-to-Device(D2D) throughput while guaranteeing Quality of Service (QoS) of cellular users. We formulate the global optimization problem as a mixed integer nonlinear programming problem and decompose it into three sub-problems. Firstly, a method of jointly uplink and downlink reuse mode...
Cell outage compensation is a crucial way for public safety network (PSN) to recover network communication independently during disasters. As a significant technology for 5G, a cloud-radio access network (C-RAN) plays an important role in a PSN. C-RAN can better achieve multi-cell cooperative outage compensation under dense network coverage because of the characteristics of densification and centralization...
With the ever-increasing demands for popular content sharing among humans, device-to-device (D2D) multicast communication, as a promising technology to support wireless services within a local area, is introduced in a 5G cellular network. However, the existing resource allocation approaches for D2D multicast communication usually consider only physical domain constraints but neglect social domain...
This paper proposes a novel indoor-outdoor caching relay system (CRS) and develops the corresponding caching mechanism, which can improve the utilization of wireless resources. It operates in two phases periodically. In Phase I, spectrum resources of the established links between MBS and user equipment (UE) are extracted to support data caching. In Phase II, caching relay system can directly serve...
When the hardware resources are limited for LwIP (A lightweight TCP/IP Stack), it's easily to come across the problem of high usage in memory allocation. Through in-depth analysis of related issues, an optimal design is presented which unifies the memory management in system and also adopts an optimal allotment. In addition, through a series of test and analysis, the practicality of improved LwIP...
There are plentiful attempts for increasing the efficiency, generality and optimality of the Design Space Exploration (DSE) algorithms for resource allocation problems of distributed embedded systems. Most contemporary approaches formulate DSE as an optimization or SAT problem, based on a set of predefined constraints. In this way, the end users lose the flexibility to guide and customize the exploration...
A key decision for the synthesis of automotive embedded systems is the allocation of application software components to ECUs. Design Space Exploration (DSE) supports the decision by automatically characterizing and evaluating a large number of possible design alternatives, and thereby suggesting the optimal ones. A primary challenge for applying DSE methods to support this decision is to reduce the...
This paper presents a fuzzy evaluation scheme of personnel ability based on the workflow execution data analysis. It supports the activities of the estimated execution time and the activities of the personnel task allocation. This paper uses personnel analysis reports of workflow logs to calculate the relative deviation of the average completion time as a role and combine with fuzzy logic to calculate...
Computer Generated Forces (CGF) is virtual entities of combat force, which can be generated and controlled by computers. Human Behavior Representation (HBR) in CGF is critical for combat simulation. Yet, despite the considerable progress in related research, the challenge of dynamic task decomposition and allocation has remained largely unaddressed. This paper describes the task decomposition strategy...
This paper describes how to dynamically form a Task-oriented organization using a concept of complex networks, which we use to define the entities and relationships of a typical organization in the domain of combat simulation. First, we analyze and describe network characteristics of real combat organization. Second, we present a dynamic network organization formation method, including task decomposition...
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