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Record W2538129567 · doi:10.7939/r3-szjp-kd85

Admission control of delay bounded traffic in cellular networks

2007· article· en· W2538129567 on OpenAlex
Yaser Khamayseh

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueUniversity of Alberta Library · 2007
Typearticle
Languageen
FieldEngineering
TopicAdvanced Wireless Network Optimization
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsComputer scienceComputer networkScheduling (production processes)Cellular networkPreemptionWireless networkDistributed computingWirelessEngineeringTelecommunications

Abstract

fetched live from OpenAlex

In this thesis we consider problems arising in delivering delay bounded traffic to mobile users of cellular networks. Such traffic is important to support (for example, for delivering multimedia streaming services), yet challenging to manage, since it typically requires relatively high data rates that consume significant wireless system resources. Moreover, users expect uninterrupted operation while roaming within the coverage area. The problems formalized in the thesis are investigated in the context of managing two types of cellular networks: (1) networks that support multi user access through time division multiplexing where a fixed number of channels is allocated to serve the streaming requests, and (2) networks that support multi user access through code division multiple access (CDMA). Such networks are characterized by a soft capacity aspect. For networks of the first type, we devise admission control (CAC) mechanisms that keep track of network state at any instant by utilizing scheduling mechanisms that take into account delay constraints on individual traffic connection requests. Two types of scheduling mechanisms are considered in the thesis for the above purpose: non-preemptive scheduling that assumes that a connection request is served to completion without service interruption, and preemptive scheduling that aims at achieving higher throughput by allowing service preemption. In both cases, the thesis develops frameworks for the devised CAC and the underlying scheduling mechanism, present quantitative analysis of the designed schedulers, and evaluate the performance of the devised frameworks by simulation. A novel contribution of the thesis is the design and analysis of CAC architectures for the first type of networks to serve delay bounded traffic. For networks of the second type, we devise a CAC mechanism that keeps track of network state at any instant by keeping track of both intra-cell and inter-cell mobility of served users in order to estimate the cell overload probability after a prediction interval in the future. Such CAC architecture has been devised in the literature for rate sensitive (but not particularly delay bounded) traffic. A novel aspect of the thesis is on extending the architecture to our present context of serving delay bounded traffic in soft capacity networks.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.316
Threshold uncertainty score0.450

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.003
GPT teacher head0.149
Teacher spread0.146 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it