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We propose and demonstrate an adaptive wireless mesh network architecture for public surveillance and monitoring. The proposed architecture is based on IEEE 802.11s WLAN mesh network, which is enhanced to provide adaptation depending on the environment of the network. We first introduce the implementation architecture of the adaptive mesh, and then describe the demonstration of the network on the...
Soldier-based tactical radio systems in the battlefield have tendencies to be severely affected by various phenomenon such as signal jamming and environment deterioration. This is because many types of wireless handheld and manpack devices carried by soldiers may not have efficient algorithms or the hardware for adapting the device to these conditions. Taking on the advantage that most of these devices...
In this paper, high performance MAC is designed and implemented to support multi-gigabit physical layer. New algorithms and Control channels are introduced for low MAC latency and high MAC throughput. The new multi-gigabit nomadic/local area wireless access, called NoLA, is implemented using the proposed MAC. NoLA demonstrated the multi-gigabit service with full HD video streams where the proposed...
In this paper, high performance MAC is designed and implemented to support multi-gigabit nomadic access systems. New algorithms and Control channels are introduced for low MAC latency and high MAC throughput. The new multi-gigabit nomadic/local area wireless access, called NoLA, is implemented using the proposed MAC. NoLA demonstrated the multi-gigabit service with full HD video streams where the...
In this paper, a new IMT-Advanced wireless communication system employing the proposed MAC frame structures was implemented and demonstrated. The proposed MAC frame structures are designed to provide Gbps data service under the nomadic environment. The implemented system provided near 1.8Gbps MAC throughput. It is shown that the implemented system with the proposed MAC frame structures can meet IMT-Advanced...
In this paper, the proposed AGC circuit is designed to adjust the strength of the received signal to a near constant optimum power level within the dynamic range of various signal processing components in the received signal path. Moreover, it can be used to dynamically control the gain of the received signal with residual DC offset and large variations caused by multi-path fading with time and frequency...
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