Asymptotic Equipartition Property of Output when Rate is above Capacity (2009)
The output distribution, when rate is above capacity, is investigated. It is shown that there is an asymptotic equipartition property (AEP) of the typical output sequences, independently of the...
An Improvement of Cover/El Gamal's Compress-and-Forward Relay Scheme (2009)
The compress-and-forward relay scheme developed by (Cover and El Gamal, 1979) is improved with a modification on the decoding process. The improvement follows as a result of realizing that it is not...
A POLYNOMIAL CRITERION FOR ADAPTIVE STABILIZABILITY OF DISCRETE-TIME NONLINEAR SYSTEMS (2009)
Chanying Li, Liang-liang Xie, Lei Guo
Abstract. In this paper, we will investigate the maximum capability of adaptive feedback in stabilizing a basic class of discrete-time nonlinear systems with both multiple unknown parameters and...
A Greedy Omnidirectional Relay Scheme (2009)
A greedy omnidirectional relay scheme is developed, and the corresponding achievable rate region is obtained for the all-source all-cast problem. The discussions are first based on the general...
Omnidirectional Relay in Wireless Networks (2008)
For wireless networks with multiple sources, an omnidirectional relay scheme is developed, where each node can help relay multiple messages in different directions. This is accomplished by the...
On Information-Theoretic Scaling Laws for Wireless Networks (2008)
With the analysis of the hierarchical scheme, the potential influence of the pre-constants in deriving scaling laws is exposed. It is found that a modified hierarchical scheme can achieve a...
Optimal Relay Station Placement in IEEE 802.16j Networks ABSTRACT (2008)
Bin Lin, Pin-han Ho, Liang-liang Xie, Xuemin (sherman Shen
To make the WiMAX Point-to-Multi-Point (PMP) systems more competitive and applicable to the future metropolitan area networking scenarios, deploying relay stations (RSs) as defined in IEEE 802.16j...
Communication: Scaling Laws and Optimal Operation (2008)
Abstract — How much information can be carried over a wireless network with a multiplicity of nodes, and how should the nodes cooperate to transfer information? To study these questions, we...
the path-loss attenuation regime for positive cost and linear scaling of transport capacity in wireless networks ∗
Aspects on the Interpretation of Disturbances in System Identification 1 (2007)
The paper contains a discussion about what results about the quality of an estimated model can be achieved, if no probabilitic assumptions are introduced. Several technical results that illustrate...
Abstract — Wireless networks with a minimum inter-node separation distance are studied where the signal attenuation grows in 1 magnitude as ρδ with distance ρ. Two performance measures of...
An achievable rate for the multiple level relay channel (2005)
For the multiple level relay channel, an achievable rate formula, and a simple coding scheme to achieve it, are presented. Generally higher rates can be achieved with this coding scheme in the...
The transport capacity of wireless networks over fading channels (2005)
Feng Xue, Student Member, Liang-liang Xie, P. R. Kumar
Abstract — We consider networks consisting of nodes with radios, and without any wired infrastructure, thus necessitating all communication to take place only over the shared wireless medium. The...
A network information theory for wireless communication: Scaling laws and optimal operation (2004)
How much information can be carried over a wireless network with a multiplicity of nodes? What are the optimal strategies for information transmission and cooperation among the nodes? We obtain sharp...