The evolution of WirelessMAN

Marks, Roger B.; Costa, João B.; Kiernan, Bette U.

doi:10.1109/mmm.2008.924778

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…To fulfill this requirement, the 3 rd Generation Partnership Project (3GPP) has started a study item on Long Term Evolution (LTE)-Advanced [2], which supports the transmission over a much wider bandwidth than the LTE systems. At the same time, the IEEE 802.16 group is also evolving the Worldwide Interoperability for Microwave Access (WiMAX) system towards IEEE 802.16m [3], [4]. The bandwidth in both systems can go up to 100 MHz, which is formed by using carrier aggregation of individual Component Carriers (CCs) [2], [4].…”

mentioning

confidence: 99%

Carrier load balancing and packet scheduling for multi-carrier systems

Wang

Pedersen

Sørensen

et al. 2010

IEEE Trans. Wireless Commun.

182

133

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Abstract-In this paper we focus on resource allocation for next generation wireless communication systems with aggregation of multiple Component Carriers (CCs), i.e., how to assign the CCs to each user, and how to multiplex multiple users in each CC. We first investigate two carrier load balancing methods for allocating the CCs to the users-Round Robin (RR) and Mobile Hashing (MH) balancing -by means of a simple theoretical formulation, as well as system level simulations. At Layer-2 we propose a simple cross-CC packet scheduling algorithm that improves the coverage performance and the resource allocation fairness among users, as compared to independent scheduling per CC. The Long Term Evolution (LTE)-Advanced is selected for the case study of a multi-carrier system. In such a system, RR provides better performance than MH balancing, and the proposed simple scheduling algorithm is shown to be effective in providing up to 90% coverage gain with no loss of the overall cell throughput, as compared to independent scheduling per CC.Index Terms-Multi-carrier, carrier aggregation, load balancing, packet scheduling, LTE-Advanced.

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mentioning

confidence: 99%

Carrier load balancing and packet scheduling for multi-carrier systems

Wang

Pedersen

Sørensen

et al. 2010

IEEE Trans. Wireless Commun.

182

133

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“…In addition, Task Group m is working on amendment IEEE 802.16m [2], which will introduce an improved air interface capable of supporting higher data rates and lower link latencies than the one currently specified in the standards, aiming to fulfil the requirements of the International Mobile Telecommunications (IMT) -Advanced systems [3], specified by the International Telecommunication Union's Radiocommunication Sector (ITU-R). The IEEE 802.16m amendment is still in the pre-draft stage and is currently expected to be finalized in late 2009 -early 2010 [4].…”

Section: Introductionmentioning

confidence: 99%

On the Performance Gains of VoIP Aggregation and ROHC over a WirelessMAN-OFDMA Air Interface

Pinola

Piri

Pentikousis

2009

GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference

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A growing number of mobile WiMAX deployments are in progress world-wide and the technology is anticipated to play a key role in next generation mobile broadband wireless networks. However, although the theoretical potential of WiMAX technologies is already well established, independent, publicly released, thorough evaluations of WiMAX network performance in the real world are yet to become available. In this study, we consider synthetic Voice over IP (VoIP) performance over the WirelessMAN-OFDMA air interface of a state of the art mobile WiMAX testbed operating at the 3.5 GHz frequency band and quantify the benefits of employing VoIP aggregation and Robust Header Compression (ROHC). Although VoIP aggregation and ROHC have been proposed and thoroughly evaluated through simulation and modeling, this is the first study to present empirical results from employing them over the WirelessMAN-OFDMA air interface of a real-world WiMAX system. Our results indicate that the combined use of VoIP aggregation and ROHC can increase the number of flows sustained without loss by approximately a factor of three.

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