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|Title:||Analytical modeling of variable bit rate multiclass services in a cellular random carrier-hopping multirate multi-carrier DS-CDMA system by leaky buckets||Authors:||Wong, T.C.
|Keywords:||Approximate analytical formulation
Mean buffer occupancy
Mean packet delay
Packet loss probability
Quality of service
Variable bit rate multiclass services
|Issue Date:||2004||Citation:||Wong, T.C.,Mark, J.W.,Chua, K.C. (2004). Analytical modeling of variable bit rate multiclass services in a cellular random carrier-hopping multirate multi-carrier DS-CDMA system by leaky buckets. IEEE Vehicular Technology Conference 59 (5) : 2522-2527. ScholarBank@NUS Repository.||Abstract:||An approximate analytical formulation of the packet level and link layer qualities of service (QoS) for variable bit rate multiclass services in a cellular Random Carrier-Hopping Multirate Multi-Carrier (MC) DS-CDMA system is presented. The novelty of this paper is that the packet buffers for each subcarrier at the mobiles in the uplink of this system are viewed and modeled as leaky buckets. A leaky bucket is a policing device commonly used to regulate and enforce traffic agreements. The relationship for the packet loss probability in a subcarrier in terms of its outage probability in the subcarrier, and the relationship for the outage probability in the subcarrier in terms of the number of connections, the mean subcarrier on/off periods and packet level QoS metric like the mean packet buffering delay in each subcarrier are explicitly derived. Numerical results illustrate that the packet loss probability and outage probability in a MC-DS-CDMA subcarrier channel can be lowered by having a smaller number of subcarriers. © 2004 IEEE.||Source Title:||IEEE Vehicular Technology Conference||URI:||http://scholarbank.nus.edu.sg/handle/10635/69414||ISSN:||15502252|
|Appears in Collections:||Staff Publications|
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