Sangkyu Baek
ABSTRACT
Power saving is one of the important issues for battery-powered mobile station in mobile WiMAX. Both IEEE 802.16e and IEEE 802.16m standards define sleep mode operations for power saving of mobile stations. In IEEE 802.16e, sleep mode alternates the listening window of fixed length and the sleep window where the sleep window can be doubled. The mobile station sends or receives packets during the active mode. In IEEE 802.16m, sleep cycle consists of extendable listening window and sleep window where sleep cycle can be doubled and the sleep window is the remaining part of sleep cycle. The mobile station sends or receives the data during the extendable listening window without going back to the active mode. The extendable listening window is implemented by T_AMS timer which plays the role of sleep mode request/response messages in the IEEE 802.16e. In this paper, we propose an efficient sleep mode operation for IEEE 802.16m advanced mobile WiMAX. The proposed scheme takes advantages of sleep modes in both IEEE 802.16e and IEEE 802.16m. This scheme has binary exponential sleep windows which guarantee the minimum length for effective power saving. The mobile station uses the T_AMS timer in IEEE 802.16m so that the mobile station sends or receives data packets during the extendable listening window in the sleep mode. We mathematically analyze the proposed scheme by an embedded Markov chain to obtain the average message delay and the average power consumption of a mobile station. The analytical results match with the simulation results very well. The analytical results show that the power consumption of our scheme is better than those of the legacy sleep modes in the IEEE 802.16e and the IEEE 802.16m under the same delay bound.
- IEEE Std 802.16-2004: Part 16: IEEE Standard for Local and metropolitan area networks: Air Interface for Fixed Broadband Wireless Access Systems, June 2004.Google Scholar
- IEEE Std. 802.16e-2005, IEEE Standard for Local and metropolitan area networks, Part 16: Air Interface for Fixed and Mobile Broadband Wireless Access Systems, Amendment 2: Physical and Medium Access Control Layers for Combined Fixed and Mobile Operation in Licensed Bands, and IEEE Std. 802.16-2004/Corl-2005, Corrigendum 1, December 2005.Google Scholar
- IEEE P802.16m/D3, December 2009.Google Scholar
- Sleep mode operation for IEEE802.16m, C802.16m-08/721r1, July 2008.Google Scholar
- Keep-awake mechanism for 802.16m sleep mode, C802.16m-08/718, July 2008.Google Scholar
- Sleep mode for IEEE 802.16m system, C802.16m-08/688r1, July 2008.Google Scholar
- Y. Xiao Energy saving mechanism in the IEEE 802.16e wireless MAN, IEEE Communications Letters, Volume 9, Issue 7, Page(s):595--597, July 2005.Google Scholar
- Y. Zhang, M. Fujise Energy management in the IEEE 802. We MAC, IEEE Communications Letters, Volume 10, Issue 4, April 2006 Page(s):311--313Google ScholarCross Ref
- K. Han, S. Choi Performance Analysis of sleep mode Operation in IEEE802.We Mobile Broadband Wireless Access Systems, IEEE VTC 2006-Spring, Volume 3, Page(s):1141--1145, May 2006.Google Scholar
- L. Kong, D. H. K. Tsang Performance Study of Power Saving Classes of Type I and II in IEEE 802.16e, IEEE Conference on Local Computer Networks, Page(s):20--27, November 2006.Google Scholar
- E. Hwang, Y. H. Lee, K. J. Kim, J. J. Son, B. D. Choi Performance Analysis of Power Saving Mechanism Employing both Sleep Mode and Idle Mode in IEEE 802.16e, IEICE Transactions on Communications, Vol. E92.B, No. 9, pp. 2809--2822, September 2009.Google Scholar
- S. Baek, J. J. Son, B. D. Choi Performance Analysis of Sleep Mode Operation for IEEE 802.16m Advanced WMAN, Communications Workshops, ICC Workshops 2009, June 2009.Google Scholar
- E. Hwang, K. J. Kim, J. J. Son, B. D. Choi The Power Saving Mechanism with Periodic Traffic Indications in the IEEE 802.16e/m, IEEE Transactions on Vehicular Technology, Vol. 59, No. 1, pp. 319--334, July 2009.Google ScholarCross Ref
- E. Hwang, K. J. Kim, J. J. Son, B. D. Choi The Power Saving Mechanism with Binary Exponential Traffic Indications in the IEEE 802.16e/m, Queueing Systems: Theory and Applications, Vol. 62, No. 3, pp. 197--227, July 2009. Google ScholarDigital Library
- H. Takagi Queueing Analysis, vol. 1, Vacation and Priority Systems, Amsterdam: North-Holland, 1991.Google Scholar
- Sequans Communications, "Datasheet: SQN1130 System-on-Chip for WiMAX Mobile Stations".Google Scholar
- IEEE 802.16m Evaluation Methodology Document (EMD), IEEE 802.16m-08/004r5, January 2009.Google Scholar
Index Terms
- Performance of an efficient sleep mode operation for IEEE 802.16m
Recommendations
An efficient power saving mechanism for sleep mode in IEEE 802.16e networks
IWCMC '10: Proceedings of the 6th International Wireless Communications and Mobile Computing ConferenceIn order to reduce the power consumption to extend the lifetime of battery-powered Mobile Stations (MSs), IEEE 802.16e has introduced a sleep mode to decrease the usage of air interface resources of serving Base Stations (BSs). In the sleep mode, MS ...
Switching cost minimization in the IEEE 802.16e mobile WiMAX sleep mode operation
To prolong the battery lifetime, it is important to continue designing a better energy efficient mechanism for different mobile technologies. Most of the existing works on the IEEE 802.16e sleep mode operation focus on the decision making before a ...
Switching cost minimization in the IEEE 802.16e mobile WiMAX sleep mode operation
IWCMC '09: Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World WirelesslyTo prolong the battery lifetime, it is important to continue designing a better energy efficient mechanism for different mobile technologies. Most of the existing works on the IEEE 802.16e sleep mode operation focus on the decision making before a ...
Comments