Richard Alimi

Learn More
Physical layer techniques have come a long way and can achieve close to Shannon capacity for single pointto-point transmissions. It is apparent that, to further improve network capacity significantly, we have to resort to concurrent transmissions. Multiple concurrent transmission techniques (e.g., zero forcing, interference alignment and distributed MIMO)(More)
Network resiliency is crucial to IP network operations. Existing techniques to recover from one or a series of failures do not offer performance predictability and may cause serious congestion. In this paper, we propose Resilient Routing Reconfiguration (R3), a novel routing protection scheme that is (i) provably congestion-free under a large number of(More)
A major barrier for the adoption of wireless mesh networks is severe limits on throughput. Many in-network packet mixing techniques at the network layer [1], [2], [3] as well as the physical layer [4], [5], [6] have been shown to substantially improve throughput. However, the optimal mixing algorithm that maximizes throughput is still unknown. In this(More)
As live streaming networks grow in scale and complexity, they are becoming increasingly difficult to evaluate. Existing evaluation methods including lab/testbed testing, simulation, and theoretical modeling, lack either scale or realism. The industrial practice of gradually-rolling-out in a testing channel is lacking in controllability and protection when(More)
A major barrier for the adoption of wireless mesh networks is severe limits on throughput. In this paper, we apply superposition coding to substantially improve network capacity of large, dense wireless mesh networks. Superposition coding is a physical layer technique that allows a transmitter to simultaneously send independent packets to multiple(More)
We present muNet, a wireless mesh network design and implementation to harness the multiuser capacity of wireless channels. Traditionally, media access control is designed to schedule one transmission between one sender and one receiver without interference at any given time. However, this design is suboptimal in terms of achieving the multiuser capacity of(More)
Content distribution has become a major function of the Internet. However, the current Internet content distribution infrastructure is largely closed to end-to-end applications, making it challenging for the application community to utilize in-network storage resources. In this paper, we investigate a simple paradigm named SAILOR that introduces(More)
A Dual-System Approach to Realistic Evaluation of Large-Scale Networked Systems Richard Allan Alimi 2010 Many useful techniques and infrastructures have been developed to test the correctness and performance of computer systems before deployment. However, they are limited when applied to the large-scale networked systems that are prevalent today, from(More)
  • 1