Lianglun Cheng

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—Network congestion in wireless sensor networks (WSNs) leads to packet drops, throughput reduction and degradation of channel quality which in turn decrease network performance. A novel cross-layer congestion control strategy for WSNs is presented. The strategy performs the bandwidth and delay estimation in MAC layer for the current link, and feedbacks them(More)
—RFID middleware collects and filters RFID streaming data gathered continuously by numerous readers to process requests from applications. These requests are called continuous queries. The problem when using any of the existing query indexes on these continuous queries is that it takes a long time to build the index because it is necessary to insert a large(More)
The inadequate resource allocation, lack of I/O performance prediction and insufficient I/O isolation are affecting the storage performance in the multi-tenant cloud storage environment. For Quality of Service (QoS), the Software-defined Storage (SDS) is an effective approach in data centers. However, the lack of intelligence, robustness and self-adjustment(More)