MOBIHOC
2009
ACM
14 years 12 months ago
2009
ACM
Cognitive radio networks are emerging as a promising technology for the efficient use of radio spectrum. In these networks, there are two categories of networks on different chann...
MOBIHOC
2009
ACM
14 years 12 months ago
2009
ACM
The study in mobile ad-hoc networks (MANET) is facing challenges brought by recent discovery of non-exponential behavior of the inter-contact time distribution of mobile nodes. In...
MOBIHOC
2009
ACM
14 years 12 months ago
2009
ACM
Sectorized antennas provide an attractive solution to increase wireless network capacity through higher spatial reuse. Despite their increasing popularity, the real-world performa...
MOBIHOC
2009
ACM
14 years 12 months ago
2009
ACM
In this paper, we present the architecture of a highly configurable multi-input multi?output (MIMO) orthogonal frequency division multiple access (OFDMA) platform. The platform is...
MOBIHOC
2009
ACM
14 years 12 months ago
2009
ACM
Location-free boundary recognition is crucial and critical for many fundamental network functionalities in wireless ad hoc and sensor networks. Previous designs, often coarse-grai...
MOBIHOC
2009
ACM
14 years 12 months ago
2009
ACM
Providing differentiated Quality of Service (QoS) over unreliable wireless channels is an important challenge for supporting several future applications. We analyze a model that h...
MOBIHOC
2009
ACM
14 years 12 months ago
2009
ACM
Finding data items is one of the most basic services of any distributed system. It is particular challenging in ad-hoc networks, due to their inherent decentralized nature and lac...
MOBIHOC
2009
ACM
14 years 12 months ago
2009
ACM
In this paper, we present a Gaussian mixture model based approach to capture the spatial characteristics of any target signal in a sensor network, and further propose a temporally...
MOBIHOC
2009
ACM
14 years 12 months ago
2009
ACM
In this paper, we consider a non-saturated IEEE 802.11 based wireless network. We use a three-way fixed point to model the node behavior with Bernoulli packet arrivals and determi...
MOBIHOC
2009
ACM
14 years 12 months ago
2009
ACM
We consider a high density of sensors randomly placed in a geographical area for event monitoring. The monitoring regions of the sensors may have significant overlap, and a subset...