Dynamic Uplink/Downlink Resource Allocation for TDD OFDMA Access Network

Kou, Mingyan; Yanxiang, Zhen

doi:10.1109/cmc.2009.191

Cited by 15 publications

(9 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This paper takes the initiative to develop a comprehensive resource management in the medium access control (MAC) layer that adheres to the IEEE 802.16 standard. In addition, this study also tends to tackles other problems that have not been emphasized by [21][22][23][24][25]. This paper studies these problems intensively and proposed a feasible solution.…”

Section: Literature Reviewmentioning

confidence: 94%

“…In [21], a dynamic time division duplex (TDD) scheme was proposed to adjust the uplink and downlink ratio but this scheme is difficult to be implemented in IEEE 802.16 standard because a dynamic frame would require a whole new procedure and protocol support. In [22] an optimization solution to minimize the uplink and downlink rates differences for each user has been proposed but the achieved throughput is drastically degraded.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Papers [21][22][23][24][25] have considered both uplink and downlink in their resource allocation. In [21], a dynamic time division duplex (TDD) scheme was proposed to adjust the uplink and downlink ratio but this scheme is difficult to be implemented in IEEE 802.16 standard because a dynamic frame would require a whole new procedure and protocol support.…”

Section: Literature Reviewmentioning

confidence: 99%

See 2 more Smart Citations

Resource Management and QoS Provisioning for Duplex Services in IEEE 802.16

New

Chow

2014

Wireless Pers Commun

View full text Add to dashboard Cite

Duplex services are multimedia services that requires good connectivity in both uplink and downlink such as VoIP, video conferencing and interactive gaming. A weak connection in either direction may cause degradation of performances and dissatisfaction of user experience. Most researchers do not consider this issue and treat resource allocations in uplink and downlink independently. For this reason, the conventional resource management schemes do not guarantee a good duplex connectivity. Generally, duplex schemes require some relation or information to be exchanged between uplink and downlink resource allocation processes. The existing duplex resource allocation schemes, however, have high complexity and do not adhere to the IEEE 802.16 standard. In this paper, we propose a duplex resource management scheme for IEEE 802.16 network to enhance the user experience and to improve the network performances. The proposed resource management scheme is a MAC layer function that corelates the uplink and downlink allocation processes using a newly proposed duplex variable. Simulation studies show that the proposed scheme brings significant benefit to duplex services in the IEEE 802.16 networks and outperforms the conventional and existing schemes in terms of uplink and downlink transmission gap, QoS performances and fairness. . He has extensive research interests including wireless networking, wireless network security and optical networking. He has been a member of the technical program committee for more than 110 international conferences. He has been a technical track chair, tutorial chair, publication chair, and session chair for more than 50 international conferences. Dr. Ma has published more than 200 international research papers. He currently serves as an

show abstract

Section: Literature Reviewmentioning

confidence: 94%

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Resource Management and QoS Provisioning for Duplex Services in IEEE 802.16

New

Chow

2014

Wireless Pers Commun

View full text Add to dashboard Cite

show abstract

“…But both are still bounded to the coupling constraint. In addition, these studies [13][14][15][16][17][18] did not consider comprehensive uplink and downlink transmission procedures that are defined in IEEE 802. 16 (WiMAX) [19][20][21].…”

Section: Introductionmentioning

confidence: 98%

“…Subsequently, some works have jointly considered both uplink and downlink in their resource allocations. For instance, [13] has proposed a dynamic time division duplex (TDD) scheme to adjust the uplink and downlink ratio but this work emphasis more on asymmetrical data. In [14], an optimization solution to minimize the uplink and downlink rates differences for each user has been proposed but the throughput is drastically degraded due to the coupling constraint.…”

Section: Introductionmentioning

confidence: 99%

Resource management for symmetrical applications over heterogeneous services in IEEE 802.16

Chow

2016

Wireless Netw

View full text Add to dashboard Cite

Symmetrical applications are multimedia applications that require both uplink and downlink connectivity. The demands of symmetrical applications are expected to grow rapidly in the future but there is still no resource management that can efficiently support symmetrical applications over heterogeneous services in IEEE 802.16 system. In this paper, we propose a resource management scheme that can support symmetrical applications along with heterogeneous services. The proposed scheme comprises of a joint uplink and downlink allocation, dynamic control system and bandwidth recycling framework. Simulation studies show that the proposed scheme outperforms asymmetrical scheme in terms of throughput, delay and packet loss. The proposed scheme also achieves similar performance gains in more complex environment.

show abstract

Bibliography

2012

Resource Allocation in Uplink OFDMA Wireless Systems

View full text Add to dashboard Cite

Dynamic Uplink/Downlink Resource Allocation for TDD OFDMA Access Network

Cited by 15 publications

References 6 publications

Resource Management and QoS Provisioning for Duplex Services in IEEE 802.16

Resource Management and QoS Provisioning for Duplex Services in IEEE 802.16

Resource management for symmetrical applications over heterogeneous services in IEEE 802.16

Bibliography

Contact Info

Product

Resources

About