TY - JOUR
T1 - System modeling and performance evaluation of rate allocation schemes for packet data services in wideband CDMA systems
AU - Kwok, Yu Kwong
AU - Lau, Vincent K.N.
N1 - Funding Information:
The authors would like to thank the anonymous reviewers for their insightful and constructive comments on this paper. This research was jointly supported by a HKU URC research grant under contract number 10203413, and by a grant from the Hong Kong Research Grants Council under contract number HKU 7024/00E. Preliminary results of this research were presented at the ACM/IEEE International Conference on Mobile Computing and Networking (MOBICOM) 2001, Rome, Italy, July 2001.
PY - 2003/6
Y1 - 2003/6
N2 - To fully exploit the potential of a wideband CDMA-based mobile Internet computing system, an efficient algorithm is needed for judiciously performing rate allocation, so as to orchestrate and allocate bandwidth for voice services and high data rate applications. However, in existing standards (e.g., cdma2000), only a first-come-first-served equal sharing allocation algorithm is used, potentially leading to a low bandwidth utilization and inadequate support of high data rate multimedia mobile applications (e.g., video/audio files swapping, multimedia messaging services, etc.). In this paper, we first analytically model the rate allocation problem that captures realistic system constraints such as downlink power limits and control, uplink Interference effects, physical channel adaptation, and soft handoff. We then suggest six efficient rate allocation schemes that are designed based on different philosophies: rate optimal, fairness-based, and user-oriented. Simulations are performed to evaluate the effectiveness of the rate allocation schemes using realistic system parameters In our model.
AB - To fully exploit the potential of a wideband CDMA-based mobile Internet computing system, an efficient algorithm is needed for judiciously performing rate allocation, so as to orchestrate and allocate bandwidth for voice services and high data rate applications. However, in existing standards (e.g., cdma2000), only a first-come-first-served equal sharing allocation algorithm is used, potentially leading to a low bandwidth utilization and inadequate support of high data rate multimedia mobile applications (e.g., video/audio files swapping, multimedia messaging services, etc.). In this paper, we first analytically model the rate allocation problem that captures realistic system constraints such as downlink power limits and control, uplink Interference effects, physical channel adaptation, and soft handoff. We then suggest six efficient rate allocation schemes that are designed based on different philosophies: rate optimal, fairness-based, and user-oriented. Simulations are performed to evaluate the effectiveness of the rate allocation schemes using realistic system parameters In our model.
KW - High data rate services
KW - Optimal
KW - Rate allocation algorithms
KW - Wideband CDMA
KW - Wireless data networks
UR - https://www.scopus.com/pages/publications/0038072743
U2 - 10.1109/TC.2003.1204835
DO - 10.1109/TC.2003.1204835
M3 - Article
AN - SCOPUS:0038072743
SN - 0018-9340
VL - 52
SP - 804
EP - 814
JO - IEEE Transactions on Computers
JF - IEEE Transactions on Computers
IS - 6
ER -