Huacheng Zeng

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—Recently, an interesting primary transmitter authen-tication scheme was proposed. The main idea of this scheme is to have the primary transmitter embed cryptographic authenti-cation tag at the physical layer. There are a number of features that make this scheme attractive. In this paper, we investigate the effective coverage areas for the primary and(More)
—Interference alignment (IA) is a major advance in information theory. Despite its rapid advance in the information theory community, most results on IA remain point-to-point or single-hop and there is a lack of advance of IA in the context of multi-hop wireless networks. The goal of this paper is to make a concrete step toward advancing IA technique in(More)
—Degree-of-Freedom (DoF)-based model is a simple yet powerful tool to analyze MIMO's spatial multiplexing (SM) and interference cancellation (IC) capabilities in a multi-hop network. Recently, a new DoF model was proposed and was shown to achieve the same rate region as the matrix-based model (under SM and IC). The essence of this new DoF model is a novel(More)
—Reactive jamming is considered the most powerful jamming attack as the attack efficiency is maximized while the risk of being detected is minimized. Currently, there are no effective anti-jamming solutions to secure OFDM wireless communications under reactive jamming attack. On the other hand, MIMO has emerged as a technology of great research interest in(More)
A fundamental issue of underwater acoustic (UWA) communications is large propagation delays due to water medium. A new direction to address this issue is to take advantage of large propagation delays rather than enduring them as a disadvantage. Recent advances in time-based interference alignment (IA), or propagation delay (PD)-based IA, offer a new(More)
—Recent advances in information theory (IT) have shown great promises of interference alignment (IA) for cellular networks. However, due to a number of assumptions, these IT results cannot be directly applied to address practical problems. The goal of this paper is to fill in this gap by studying IA for cellular networks with more practical settings. We(More)
The rapid advances of MIMO to date have mainly stayed at the physical layer or single-hop communications. Such fruits have not been fully reaped at the network level, particularly for multi-hop networks. This is mainly due to the lack of a tractable and accurate model that can characterize MIMO's powerful capabilities such as spatial multiplexing (SM) and(More)
— Jamming attack is a serious threat to the wireless communications. Reactive jamming maximizes the attack efficiency by jamming only when the targets are communicating , which can be readily implemented using software-defined radios. In this paper, we explore the use of the multi-input multi-output (MIMO) technology to achieve jamming resilient orthogonal(More)
Interference alignment (IA) has been widely regarded as a promising technique to handle mutual interference in wireless networks. Although there have been many studies on IA, most of the results are limited to the single-hop scenario. To date, research of IA in the networking community remains scarce. This stagnation underscores both the technical barrier(More)