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Recently, densified small cell deployment with overlay coverage through Heterogeneous Networks (HetNets) has emerged as a viable solution for 5G mobile networks. Cell Outage Detection (COD) which is the essential functionality in Self-Organizing Network (SON) is designed to autonomously deal with unexpected faults. Typical methods for detecting cell outage are usually based on Manual Drive Tests (MDT)...
In vehicular communication protocol stacks, received messages may not always be decoded successfully due to the complexity of the decoding functions, the uncertainty of the communication load and the limited computation resources. Even worse, an improper implementation of the protocol stack may cause an unfair data age distribution among all the communicating vehicles (the receiving bias problem)...
To solve abnormal coverage problems in cellular networks caused by some internal or external failures without power control, an automated Cell Outage Compensation (COC) scheme based on antenna downtilt adjustment of Base Stations (BSs) is proposed. We firstly give the self-organized processes for COC, then use an algorithm named Autonomic Downtilt Adjustment Particle Swarm Algorithm (ADAPSA) to resolve...
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...
As a major part of wireless network optimization, load balancing can make the BS's resource utilization more reasonable. This paper proposes a load-balancing strategy based on Coordinated Multiple Points (CoMP) transmission/reception among the Base Stations (BS). To use universally, different patterns of load-balancing based on CoMP are modeled and discussed. We define call blocking rate as the QoS...
Emotions play a powerful, central role in our lives. They can influence human behaviors and guide human to adapt to the environment. This paper suggests that human emotion space consists of three kinds of emotions: cognitive emotion, expected emotion and reflex emotion. The human behavior is also divided into two kinds: cognitive behavior and reflex behavior. The emotion generating mechanism and the...
A flexible decentralized and hierarchical architecture is presented to reduce computational effort in designing optimal nonblocking supervisors for discrete-event systems (DES). We organize a DES into modular subsystems that embody internal interacting dependencies. Verification of, and coordination among modular subsystems are achieved through their model abstractions. Sufficient conditions are presented...
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