Packet Delay Budget Aware AMC Selection for 3G LTE of Evolved Packet System 


Vol. 33,  No. 8, pp. 787-793, Aug.  2008


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  Abstract

3GPP evolved packet system (EPS) is an all-IP based system that supports various access networks such LTE, HSPA/HSPA+, and non-3GPP networks. Recently, the support of IP flows with packet level QoS profiles was added to the requirements of the EPS. This paper proposes an adaptive modulation and coding (AMC) scheme that supports the QoS of such IP flows in the 3G LTE access network of the EPS. Defining the retransmission as a critical factor for QoS, the proposed scheme applies different maximum packet error probability Pmax to each packet when selecting the AMC transmission mode. In determining Pmax, the QoS constraints and NACK-to-ACK error as well as channel condition are considered, balancing two objectives: the satisfaction of the QoS and the maximization of spectral efficiency. The simulation resutls show that it is able to reduce both delay violation and status report by 10%, while improving the throughput 10% in comparison with an existing scheme.

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  Cite this article

[IEEE Style]

K. Jun, "Packet Delay Budget Aware AMC Selection for 3G LTE of Evolved Packet System," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 8, pp. 787-793, 2008. DOI: .

[ACM Style]

Kyungkoo Jun. 2008. Packet Delay Budget Aware AMC Selection for 3G LTE of Evolved Packet System. The Journal of Korean Institute of Communications and Information Sciences, 33, 8, (2008), 787-793. DOI: .

[KICS Style]

Kyungkoo Jun, "Packet Delay Budget Aware AMC Selection for 3G LTE of Evolved Packet System," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 8, pp. 787-793, 8. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880