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WSN (Wireless Sensor Network) has a wide range of applications. As a result, security problems become increasingly important. We investigate the problem of minimising the failure rate of packet delivery in the presence of the modification attacks and the selective forwarding attacks in a static WSN with one base station without using expensive encryption/decryption algorithms. We propose a novel heuristic...
Main-stream general-purpose microprocessors require a collection of high-performance interconnects to supply the necessary data movement. The trend of continued increase in core count has prompted designs of packet-switched network as a scalable solution for future-generation chips. However, the cost of scalability can be significant and especially hard to justify for smaller-scale chips. In contrast,...
The growing number of cores in chip multiprocessors increases the importance of interconnection for overall system performance and energy efficiency. Compared to traditional distributed shared-memory architectures, chip-multiprocessors (CMPs) offer a different set of design constraints and opportunities. As a result, a conventional packet-relay multiprocessor interconnect architecture is a valid,...
With increasing core count, chip multiprocessors (CMP) require a high-performance interconnect fabric that is energy-efficient Well-engineered transmission line-based communication systems offer an attractive solution, especially for CMPs with a moderate number of cores. While transmission lines have been used in a wide variety of purposes, there lack comprehensive studies to guide architects to navigate...
As microprocessor chips integrate a growing number of cores, the issue of interconnection becomes more important for overall system performance and efficiency. Compared to traditional distributed shared-memory architecture, chip-multiprocessors offer a different set of design constraints and opportunities. As a result, a conventional packet-relay multiprocessor interconnect architecture is a valid,...
Ultrafast pulse generation and detection are pivotal functions in ultra-wideband (UWB) impulse radios. This paper shows that digitally-assisted distributed circuit techniques provide an energy-efficient, reconfigurable solution for both functions, as demonstrated in two new circuits: a pulse generator that can generate reconfigurable pulse waveforms with sub-nanosecond time resolution, and a multi-GHz...
This paper presents a low power impulse-radio ultra-wideband (IR-UWB) receiver based on a reconfigurable, high speed analog correlator called distributed pulse correlator (DPC). The DPC incorporates built-in local template pulse generation, and hence significantly reduces the power consumption and circuit complexity of the analog correlation receiver. A chip prototype of the IR-UWB receiver was implemented...
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