Optimal MAC PDU Size in IEEE 802.16

Martikainen, Henrik; Sayenko, Alexander; Alanen, Olli; Tykhomyrov, Vitaliy

doi:10.1109/itnews.2008.4488131

Cited by 35 publications

(22 citation statements)

References 6 publications

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“…On the other hand, the MPDU header is significant if there are many small MPDUs. Note that in [16], the estimation of optimal MPDU size (L) was drawn.…”

Section: Wimax Frame Structurementioning

confidence: 99%

See 1 more Smart Citation

Scheduling in IEEE 802.16e mobile WiMAX networks: key issues and a survey

So-In

Jain

Al-Tamimi

2009

IEEE J. Select. Areas Commun.

290

182

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Abstract-Interest in broadband wireless access (BWA) has been growing due to increased user mobility and the need for data access at all times. IEEE 802.16e based WiMAX networks promise the best available quality of experience for mobile data service users. Unlike wireless LANs, WiMAX networks incorporate several quality of service (QoS) mechanisms at the Media Access Control (MAC) level for guaranteed services for data, voice and video. The problem of assuring QoS is basically that of how to allocate available resources among users in order to meet the QoS criteria such as delay, delay jitter and throughput requirements. IEEE standard does not include a standard scheduling mechanism and leaves it for implementer differentiation. Scheduling is, therefore, of special interest to all WiMAX equipment makers and service providers. This paper discusses the key issues and design factors to be considered for scheduler designers. In addition, we present an extensive survey of recent scheduling research. We classify the proposed mechanisms based on the use of channel conditions. The goals of scheduling are to achieve the optimal usage of resources, to assure the QoS guarantees, to maximize goodput and to minimize power consumption while ensuring feasible algorithm complexity and system scalability.

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“…On the other hand, the MPDU header is significant if there are many small MPDUs. Note that in [16], the estimation of optimal MPDU size (L) was drawn.…”

Section: Wimax Frame Structurementioning

confidence: 99%

“…Several features such as unlicensed band operation, 60 GHz operation, while specified in the IEEE 802. 16 are not a part of WiMAX networks since it is not currently in the profiles agreed at the WiMAX Forum. For an equipment to be certified as WiMAX compliant, the equipment has to pass the inter-operability tests specified by the WiMAX Forum.…”

mentioning

confidence: 99%

Scheduling in IEEE 802.16e mobile WiMAX networks: key issues and a survey

So-In

Jain

Al-Tamimi

2009

IEEE J. Select. Areas Commun.

290

182

View full text Add to dashboard Cite

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“…On the other hand, a small PDU has a larger overhead. In [31], we studied the optimal MAC level PDU size in different channel conditions. We showed that it is possible to find the optimal PDU size if we know the channel conditions.…”

Section: Optimal Pdu Sizementioning

confidence: 99%

Handover performance in the IEEE 802.16 mobile networks

Hytönen¹,

Sayenko²,

Martikainen³

et al. 2012

Proceedings of the 3rd International ICST Conference on Simulation Tools and Techniques

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In broadband wireless access network, continuous high speed data communication can be provided to mobile subscribers by well designed mobility management, where handover is a key element in maintaining air link to base station even in high velocity. When a mobile station changes its geographical position, it may also need to change its attachment point in the network in order to retain the quality of the connection. This is when a controlled handover is conducted. In the thesis, hard handover in IEEE 802.16 WiMAX network is studied by means of simulations in NS-2 network simulator. The studied handover type always causes a short interruption time before new connections are established with target base station. During this time user data cannot be transferred. Therefore, it is important to use handover optimization methods to decrease the interruption time, as well as avoid redundant handovers to minimize unnecessary connection drops. These topics are examined in this thesis. Suomenkielinen tiivistelmä: Langattomassa laajakaistaverkossa liikkuville käyt-täjille voidaan tarjota jatkuva nopea tietoliikenneyhteys hyvin suunnitellun liikkuvuuden hallinnan avulla, missä yhteysvastuun vaihto tarjoaa keinon säilyttää langaton yhteys tukiasemaan suuressakin nopeudessa. Mobiilipäätelaitteen vaihtaessa maantieteellistä sijaintiaan voi olla tarpeellista vaihtaa myös sen liityntäpistettä verkossa, jotta yhteyden laatu voitaisiin säilyttää. Tässä tilanteessa suoritetaan hallittu yhteysvastuun vaihto. Tutkielmassa tutkitaan hard handover -tyyppistä yhteysvastuun vaihtoa IEEE 802.16 WiMAX -verkossa NS-2-verkkosimulaattorin avulla. Tutkittu yhteysvastuun vaihdon tyyppi aiheuttaa aina lyhyen katkoksen ennen uusien yhteyksien luomista kohdetukiasemalle. Tämän katkoksen aikana ei voida siirtää käyttäjän dataa. Tästä syystä on tärkeää käyttää yhteysvastuun vaihdon optimointitapoja katkoksen lyhentämiseksi, ja välttää turhia yhteysvastuun vaihtoja yhteyskatkosten minimoimiseksi. Näitä aiheita käsitellään tässä tutkielmassa.

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“…The basic data unit of MAC layer in WLANs[14].b The basic protocol data unit in WiMAXs[15]. c The basic data packet in TCP/IP protocols[16].…”

mentioning

confidence: 99%