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Fall 2012

Mortimer, Richard T

RP-CDMA is a wireless multiple access technique that utilizes multiple spreading codes and a multiuser detector to enhance link reliability and performance. We propose a simple MAC protocol on top of the RP-CDMA Phy and apply it to the multihop ad hoc network model. In addition to a MAC, we...

Spring 2024

Yong, Alan

We bridge the localization techniques that are based on proximity (near/far) information with those based on Received Signal Strength Indication (RSSI) information. An RSSI-based scheme can be mapped to proximity-based scheme by quantizing the RSSI values such they are represented by a single...

Fall 2012

Liu, Chen

Over the past two decades, wireless networking has become an enabling technology for ubiquitous computing and inexpensive Internet access. The demand for wireless networking has also increased steadily, including a wider range of applications, larger user populations, and larger network scale....

Fall 2009

Zou, Shoudong

In this thesis, we propose mechanisms to extend the lifetime of wireless sensor networks. In-network data aggregation is considered on both tree-based and flow-based routing protocols during the process of data collection to reduce redundant transmissions. In the flow-based data collection...

Fall 2015

Li, Ke

As wireless devices have emerged as a ubiquitous part of people's everyday lives, the demands for faster wireless communications become even more pressing. Fortunately, the advanced techniques of the physical layer such as multiple-input and multiple-output (MIMO), multi-user detection (MUD),...

Spring 2020

Gao, Wanxin

Today's mobile battery-powered communication devices require that users access chargers via wired and, recently, wireless recharging facilities. For a device departing from a location with a given energy ``budget'', a plausible strategy is to seek a charger location once the energy is exhausted....

Spring 2013

Islam, Mohammad S

Wireless Sensor networks (WSN) have gained attention in both industry and academia due to their versatile fields of application. One of the main characteristics of a sensor node is its limited energy supply. The network needs to be reliable in the sense that it can deliver the data to sink with...