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Relaying is emerging as one of the key radio access techniques for LTE-Advanced (LTE-A) networks to fulfill the LTE-Advanced coverage and capacity requirements in a cost-efficient way. Relaying enables improved high data rate coverage for indoor environments or at the cell edge by deploying a low power base station. Type I in-band relaying supports a relaying mode where the backhaul link transmission is time-division multiplexed with the access link reception, whereas macro users share the same resources with the relays. Therefore, in LTE-A networks deployed with type I relay nodes, resource partitioning is required to support in-band relaying. Consequently, it is very important to know how to partition system resources to attain improved fairness and efficiency. The main contribution of this paper is to design and analyze a novel admission control with an adaptive resource partitioning (AC-ARP) scheme to facilitate the operation of fixed relay stations in the OFDMA-based relay enhanced LTE-Advanced networks in a more efficient way. Its analytical model using multi-dimensional continuous time Markov chains is derived and explained. In addition, its performance comparisons with conventional admission control with a fixed resource partitioning (AC-FRP) scheme is presented and discussed. We present numerical examples to demonstrate the performance of the proposed AC-ARP scheme, and we show that analytical and simulation results are in complete agreement. The results also indicate the superiority of AC-ARP because it is able to achieve a better balance between system utilization and QoS provisioning compared to the AC-FRP scheme.
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3GPP TR 36.814. (2010, March). Requirements for further advancements for Evolved UTRA (EUTRA Release 9). Physical layer aspects version 9.0.0. www.3gpp.org.
Loa, K., Wu, C., Sheu, S., Yuan, Y., Chion, M., Huo, D., et al. (August 2010). IMT-Advanced relay standards. IEEE Communications Magazine, 48(8), 40–48.
Lang, E., Redana, S., & Raaf, B. (2009, June). Business impact of relay deployment for coverage extension in 3GPP LTE-Advanced. In LTE evolution workshop, IEEE ICC 2009 (pp. 14–18).
Peters, S. W., Panah, A. Y., Truong, K. T., & Heath, R. W., Jr. (2009). Relay architectures for 3GPP LTE-Advanced. EURASIP Journal on Wireless Communications and Networking, 2009, 618787. doi: 10.1155/2009/618787.
Song, S. H., Almutairi, A. F., & Letaief, K. B. (2013). Outage-capacity based adaptive relaying in LTE-Advanced networks. IEEE Transactions on Wireless Communications, 12(9), 4778–4787. CrossRef
Liu, C. H., Gkelias, A., Hou, Y., & Leung, K. K. (2008, Oct). A distributed scheduling algorithm with QoS provisions in multi-hop wireless mesh networks. In 4th IEEE international conference on wireless and mobile computing, networking and communications (WiMob 2008), Avignon, France (pp. 253–258).
Kausar, R., Chen, Y., Chai, K. K., Cuthbert, L., & Schormans, J. (2010, Oct). QoS aware mixed traffic packet scheduling in OFDMA-based LTE-Advanced networks. In The fourth international conference on mobile ubiquitous computing, systems, services and technologies UBICOMM 2010, Florence, Italy (pp. 53–58).
Liebl, G., de Moraes, T. M., Soysal, A., & Seidel, E. (2011, May). Fair resource allocation for inband relaying in LTE-Advanced. In 2011 8th international workshop on multi-carrier systems & solutions (MC-SS), Herrsching, Germany (pp. 1–5).
Ma, Z., Xiang, W., Long, H., & Wang, W. (2011, June). Proportional fair resource allocation for LTE-Advanced networks with type I relay nodes. In IEEE international conference on communications ICC2011, Kyoto, Japan (pp. 1–5).
Vitiello, F., Redana, S., & Hämäläinen, J. (2012). Admission control for LTE-Adanced relay systems. In European wireless 2012.
de Moraes, T. M., Nisar, M. D., Gonzalez, A., & Seidel, E. (2012). Resource allocation in relay enhanced LTE networks. EURASIP Journal on Wireless Communications and Networking, 2012, 364. CrossRef
de Moraes, T. M., Gonzalez, A., Nisar, M. D., Seidel, E. (2012, June). QoS-aware resource allocation for in-band relaying in LTE-Advanced. In 8th international conference on wireless and mobile communications (ICWMC 2012), Venice, Italy.
Xiang, W., Long, H., & Wang, W. (2011). Proportional fair resource partition for LTE-Advanced networks with type I relay nodes. In Communications (ICC), 2011 IEEE international conference on (pp. 5–9).
Bulakci, Ö., Saleh, A. B., Redana, S., Raaf, B., & Hämäläinen, J. (2013). Resource sharing in LTE-Advanced relay networks: uplink system performance analysis. Transactions on Emerging Telecommunications Technologies, 24, 32–48. CrossRef
Redana, S., Raaf, B., & Hamalainen, J. (2009). Uplink resource partitioning in relay enhanced LTE-Advanced networks. In IEEE 20th international symposium on personal, indoor and mobile radio communications (pp. 1502–1506).
de Martins T.M., Gerhard, B., & Eiko, S. (2013). QoS-aware scheduling for in-band relays in LTE-Advanced. In Proceedings of 2013 9th international ITG conference on systems, communication and coding (SCC) (pp. 1–6).
Paul, A., Veselin, R., Oscar, R., & Joachim, H. (2013). Algorithms for adaptive radio resource management in relay-assisted LTE-A networks. In 2013 IEEE 77th vehicular technology conference (VTC Spring) (pp. 1–5).
de Moraes, T. M., Abdallah B. S., Gerhard, B., & Eiko, S. (2013). QoS-aware traffic scheduling in LTE-Advanced relay-enhanced networks. In 2013 IEEE 77th vehicular technology conference (VTC Spring) (pp. 1–5).
TR. 36.942 Annex A. (2010). Radio frequency (RF) system scenarios (Release 10). December 2010, v10.2.0. www.3gpp.org.
TR 36211 (2010). Physical channels and modulation (Release 10). December 2010, v10.0.0, www.3gpp.org.
Hong, D., & Rappaport, S. S. (1986). Traffic model and performance analysis for cellular mobile radio telephone systems with prioritized and nonprioritized handover procedures. IEEE Transactions on Vehicular Technology, VT– 35(3), 77–92. CrossRef
Law, A., & Kelton, W. (2000). Simulation modeling and analysis (3rd ed.). New York: McGraw-Hill.
3GPP TR36.814 v1.2.1, Further advancements for E-UTRAN physical layer aspects.
- Analysis of an Adaptive Priority Based Resource Allocation Control for LTE-Advanced Communications with Type I Relay Nodes
Salman A. AlQahtani
- Springer US
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