Modern wireless devices, such as those that implement the 802.11b standard, utilize multiple transmission rates in order to accommodate a wide range of channel conditions. Traditional ad hoc routing protocols typically use minimum hop paths. These paths tend to contain long range links that have low effective throughput and reduced reliability in multi-rate networks. In this work, we present th...

In this paper we propose a platform that optimizes the available end-to-end throughput in real time through overlay networks. With the knowledge the network topology and conditions, it strives to achieve the optimal end-to-end throughput by exploring the last-mile diversity. It allows the flexible and responsive per-end-user selection of the edge node for the overlay networks, and thus can fast...

The performance of streaming media servers has been limited due to the dual requirements of high throughput and low memory use. Although disk throughput has been enjoying a 40% annual increase, slower improvements in disk access times necessitate the use of large DRAM buffers to improve the overall streaming throughput. MEMS-based storage is an exciting new technology that promises to bridge th...

Given the rapid increase in traffic, greater demands have been put on research in high-speed switching systems. Such systems have to simultaneously meet several constraints, e.g., high throughput, low delay and low complexity. This makes it challenging to design an efficient scheduling algorithm, and has consequently drawn considerable research interest. However, previous results either cannot ...

Multithreading processors pose new challenges and new opportunities for cache/memory hierarchy design. Multithreading significantly alters the data reference stream seen by the memory subsystem. Multithreading also demands very different performance characteristics from the cache hierarchy than a typical (uniprocessor) CPU. This paper is specifically concerned with memory hierarchy design consi...

Traditionally, all devices of an ad hoc wireless network uses the same frequency band (or channel) for communication. Quite often, however, multiple channels are available but each device cannot operate on all channels concurrently. In such case, multi-channel MAC protocols enable pairs of devices to communicate on different channels simultaneously to increase network throughput. In this paper,...

In today’s Internet, almost all applications employ either TCP or UDP as the transport protocol. With the increase of UDP traffic on the Internet, maintaining fairness while improving throughput has become a hot research topic in the Internet community. In this paper, we use simulations to evaluate the performance of a novel packet discarding algorithm, MBD (Minimum Bandwidth Drop), proposed fo...

In this paper, we investigate the benefit of network coding over routing for multiple independent unicast transmissions. We compare the maximum achievable throughput with network coding and that with routing only. We show that the result depends crucially on the network model. In directed networks, or in undirected networks with integral routing requirement, network coding may outperform routin...

The emergence of huge containerships together with the scarcity of yard land put an enormous pressure on authorities to adopt advanced technologies to increase the throughput of current container terminals. Automated Container Terminals (ACT), using advanced material handling technologies, are recently considered as candidates for increasing the performance of manually operated yards. In this p...

A design approach to create small-sized high-speed implementations of the Keyed-Hash Message Authentication Code (HMAC) is presented. The proposed implementation can either operate in HMAC-MD5 and/or in HMAC-SHA1 mode. The proposed implementations do not introduce significant area penalty. However the achieved throughput presents an increase compared to commercially available IP cores that rang...