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It is well known that traditional water-filling provides a closed form solution for capacity maximization in orthogonal frequency division multiplex (OFDM) system. In this paper, cooperative power allocation is investigated in a two-transmitter multi-receiver model for OFDM systems. The local full channel state information (CSI) is available at the two transmitters respectively, where each transmitter...
The multi-source and single-sink (MSSS) topology is defined as the network topology in wireless sensor networks (WSNs), where all of nodes can gather, receive and transmit data to the sink. We consider the problem of finding the joint optimal scheme with consideration of physical, medium access control (MAC), and network layers to maximize the network lifetime (NL) for the MSSS topology in the energy-constrained...
Either as a significant augmentation of GPS system, or as an independent system for indoor positioning, pseudolites augmenting GPS technique has become an exciting technology whose potential can be explored for a wide range of positioning and navigation application. Indoor positioning using multiple pseudolites signals, however, comes up against a number of obstacles, and there are some challenging...
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