This paper studies the Ant-based packet contention resolution schemes for the singlestage shared FDL optical packet switches. A new Ant-based algorithm is proposed, namely delaybased FDL assignment and number–delay-based FDL assignment. The proposed algorithm can makes FDLs and output port reservation so as to improve the cell-loss rate under various traffic loads. The proposed contention resol...

The regional travel demand models are generally macroscopic in nature and do not include traffic controls in the traffic assignment process. In travel demand models, the road capacities are kept fixed within the functional classification of roadways and free-flow-speeds are adjusted to accommodate the impacts of traffic controls and traffic operations. Part of the reason this approach is adopte...

Joint channel assignment and routing is an essential yet challenging issue for multi-radio multi-channel wireless mesh networks. Though several works are presented in the existing literature to approach this problem, the key question – how to ensure that the resulting network performance can closely track the optimal solution under high traffic variability without incurring too much overhead, r...

this report presents a case of vertebral artery dissection (vad), which was misdiagnosed as cerebrovascular accident (cva) in initial examinations.in this case, a 33-year old woman, who was involved in a car accident, was referred to khoy legal medicine centre by traffic court two months after the accident.the patient was examined by the author, who was on an assignment at the centre.at this ti...

Among different stochastic user equilibrium (SUE) traffic assignment models, the Logit-based stochastic user equilibrium (SUE) is extensively investigated by researchers. It is constantly formulated as the low-level problem to describe the drivers' route choice behavior in bi-level problems such as network design, toll optimization et al. The Probit-based SUE model receives far less attention c...

—Efficient management of the radio spectrum can be accomplished by making use of channel assignment techniques, which work by allocating different channels of the spectrum to the cells of the network in a conflict-free manner (i.e., the cochannel interference is minimized). The problem of dynamically reallocating the channels in response to change in user location patterns, which occurs frequen...

In order to solve the system optimum dynamic traffic assignment problem, the whole link model with physical queue is used to formulate the single destination system optimum dynamic traffic assignment problem as a mixed linear program. A relationship between the cumulative curves and the wave speed presented by Newell (1993) is used to present a dynamic network model in considering spillback que...

Traffic engineering aims to optimize the utilization of existing network resources for load balance and failure recovery, and these are to be accomplished in a scalable fashion. This paper proposes a traffic engineering scheme using multiple multipoint-to-point (m-t-p) Label Switched Paths (LSPs) which can reduce the number of LSPs and required labels in links. The scheme consists of m-t-p LSP ...