IEEE 802.16 coexistence through regular channel occupation

Mühleisen, Maciej; Jennen, Ralf; Siddique, Mohammad M.; Görg, Carmelita

doi:10.1109/ew.2009.5357967

Cited by 4 publications

(2 citation statements)

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“…One approach is to separate operation of several systems in time domain on the time scale of whole MAC frames. In [3] an approach is presented allowing multiple collocated 802.16 systems to coexist. Here systems are multiplexed in time domain on a time scale shorter than a MAC frame.…”

Section: B Related Workmentioning

confidence: 99%

Capacity analysis and improvement for coexisting IEEE 802.16 systems in unlicensed spectrum

Mühleisen

Wolz

Siddique

et al. 2009

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications

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Today spectrum demand for wireless communication is tremendous and even keeps growing. In contrast, there are no blank spots in the spectrum map. Additional spectrum opportunities are available in unlicensed bands and so-called nonexclusively licensed bands which are currently made available. This non-exclusive spectrum can be exploited whenever a license holder is not active.These spectrum opportunities cannot be exclusively accessed so that multiple systems need to coexist. Existing MAC protocols need to be enhanced to allow a system to meet own Quality of Service (QoS) demands while allowing other coexisting systems to meet their QoS requirements.In this work, methods for capacity calculation known from cellular networks are extended and applied to a scenario of coexisting IEEE 802.16 (WiMAX) systems. Developed methods are used to evaluate enhancements for interference mitigation which lead to increased capacity.

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Section: B Related Workmentioning

confidence: 99%

Capacity analysis and improvement for coexisting IEEE 802.16 systems in unlicensed spectrum

Mühleisen

Wolz

Siddique

et al. 2009

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications

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“…However, the case of uncoordinated scheduled transmitters (as might be the case when they belong to different operators) is challenging as results depend greatly on the extent of the desychronisation of their slot boundaries. Some works to coordinate scheduled transmitters in the context of WiMaX include [38], [39].…”

Section: Scopementioning

confidence: 99%

Fair Coexistence of Scheduled and Random Access Wireless Networks: Unlicensed LTE/WiFi

Cano

Leith

García‐Saavedra³

et al. 2017

IEEE/ACM Trans. Networking

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Abstract-We study the fair coexistence of scheduled and random access transmitters sharing the same frequency channel. Interest in coexistence is topical due to the need for emerging unlicensed LTE technologies to coexist fairly with WiFi. However, this interest is not confined to LTE/WiFi as coexistence is likely to become increasingly commonplace in IoT networks and beyond 5G. In this article we show that mixing scheduled and random access incurs and inherent throughput/delay cost, the cost of heterogeneity. We derive the joint proportional fair rate allocation, which casts useful light on current LTE/WiFi discussions. We present experimental results on inter-technology detection and consider the impact of imperfect carrier sensing.

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