Average Link Rate Analysis over Finite Time Horizon in a Wireless Network
dc.contributor.author | Bodepudi, Sai Nisanth | en |
dc.contributor.committeechair | MacKenzie, Allen B. | en |
dc.contributor.committeechair | Dhillon, Harpreet Singh | en |
dc.contributor.committeemember | Reed, Jeffrey H. | en |
dc.contributor.department | Electrical and Computer Engineering | en |
dc.date.accessioned | 2018-09-22T06:00:37Z | en |
dc.date.available | 2018-09-22T06:00:37Z | en |
dc.date.issued | 2017-03-30 | en |
dc.description.abstract | Instantaneous and ergodic rates are two of the most commonly used metrics to characterize throughput of wireless networks. Roughly speaking, the former characterizes the rate achievable in a given time slot, whereas the latter is useful in characterizing average rate achievable over a long time period. Clearly, the reality often lies somewhere in between these two extremes. Consequently, in this work, we define and characterize a more realistic N-slot average rate (achievable rate averaged over N time slots). This N-slot average rate metric refines the popular notion of ergodic rate, which is defined under the assumption that a user experiences a complete ensemble of channel and interference conditions in the current session (not always realistic, especially for short-lived sessions). The proposed metric is used to study the performance of typical nodes in both ad hoc and downlink cellular networks. The ad hoc network is modeled as a Poisson bipolar network with a fixed distance between each transmitter and its intended receiver. The cellular network is also modeled as a homogeneous Poisson point process. For both these setups, we use tools from stochastic geometry to derive the distribution of N-slot average rate in the following three cases: (i) rate across N time slots is completely correlated, (ii) rate across N time slots is independent and identically distributed, and (iii) rate across N time slots is partially correlated. While the reality is close to third case, the exact characterization of the first two extreme cases exposes certain important design insights. | en |
dc.description.degree | Master of Science | en |
dc.format.medium | ETD | en |
dc.identifier.other | vt_gsexam:9971 | en |
dc.identifier.uri | http://hdl.handle.net/10919/85104 | en |
dc.publisher | Virginia Tech | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject | Ad hoc network | en |
dc.subject | cellular network | en |
dc.subject | Poisson point process | en |
dc.subject | stochastic geometry | en |
dc.subject | average rate | en |
dc.title | Average Link Rate Analysis over Finite Time Horizon in a Wireless Network | en |
dc.type | Thesis | en |
thesis.degree.discipline | Electrical Engineering | en |
thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
thesis.degree.level | masters | en |
thesis.degree.name | Master of Science | en |
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