High‐Speed Packet Access Evolution (HSPA+) in 3GPP Release 7

Holma, Harri; Toskala, Antti; Ranta‐Aho, Karri; Pirskanen, Juho; Kaikkonen, Jorma

doi:10.1002/9780470512531.ch15

Cited by 23 publications

(25 citation statements)

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“…3 We consider 802. 16 [25] and Long Term Evolution (LTE) [26]. The data from TeleGeography [27], pertinent to deployment status of different 4G technologies, confirms the exceeding phenomena of WiMAX deployment [28].…”

Section: Introductionmentioning

confidence: 86%

SymCo: Symbiotic Coexistence of Single-hop and Multi-hop Transmissions in Next-generation Wireless Mesh Networks

Islam

Raghunathan

2015

Wireless Netw

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The most-frequently used radio in wireless mesh networks, i.e., 802.11, has short transmission range. Consequently, it mostly imposes multi-hop transmission and thus limits the utilization of radio bandwidth. Emerging radio technologies under the umbrella of 4G, having long transmission range, are capable of enhancing the bandwidth utilization through single-hop transmission at the expense of limiting spatial reuse over the network. Both of these excellences, i.e., the efficient bandwidth utilization and the spatial reuse, are required in case of a concurrent presence of two types of flows-base station oriented and random flows. Therefore, it is necessary to efficiently use both types of radios, i.e., 802.11 and 4G, in next-generation wireless mesh networks, as they are going to experience a mix of the two types of flows. We propose an architecture to guarantee the efficient usage of both the radios through their symbiotic coexistence. Extensive evaluation through analytical modeling, ns-2 simulation, and real testbed experiments reveals that our proposed architecture achieves up to approximately 6Â network throughput, 95 % decreased end-to-end delay, and 98 % decreased number of base stations compared to other radio alternatives.

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Section: Introductionmentioning

confidence: 86%

SymCo: Symbiotic Coexistence of Single-hop and Multi-hop Transmissions in Next-generation Wireless Mesh Networks

Islam

Raghunathan

2015

Wireless Netw

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“…each enhanced AP is interconnected with neighboring enhanced APs in addition to the CN. When compared to the two-level architecture, the flat architecture is equivalent to embedding an APC in every AP [11], [12].…”

Section: ) Flat Architecturementioning

confidence: 99%

Unified Radio Access Network operation for Multi-Radio Access Technology cellular systems

Alsohaily

Sousa

2014

2014 21st International Conference on Telecommunications (ICT)

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The architectural structure of Radio Access Networks (RANs) in Multi-Radio Access Technology (RAT) cellular systems is based on the independent iteration of single RAT RANs and statically dividing radio frequency resources between co-deployed RATs, leading to high system complexity and suboptimal spectrum utilization. This paper proposes the unification of RAN operation and presents a scalable RAN architectural structure for multi-RAT cellular systems. Detailed system-level simulations, for a system co-deploying HSPA and LTE, show that joint resource allocation significantly enhances the system performance and outperforms dynamic spectrum management techniques employing disjoint resource allocation.

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“…Current mobile terminals are required to support various frequency bands, whereas the use of multiple single-band antennas will be costly in terms of space, which is already limited in such devices. The recent introduction of LTE (Long Term Evolution) systems to enable high speed data transfer for video and multimedia applications has increased the demands of such multiband antennas with minimal weight and cost [1,2].…”

Section: Introductionmentioning

confidence: 99%

A Quad-Band CPW Fed Slot Antenna Array for Lte and Wimax Applications

Elahi¹,

Khan²,

Al‐Hadi³

et al. 2017

PIER M

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Abstract-In this work, a quad-band omnidirectional slot antenna array is proposed. The structure consists of two closely-spaced radiating elements fed using coplanar waveguide (CPW) line. This combined structure is then integrated in a tapered slot etched on the antenna to enable operation in four frequency bands (0.8, 1.8, 2.6 and 3.45 GHz) for LTE and WiMAX applications with at least −10 dB of reflection coefficient. The antenna dimensional parameters are also studied to understand its behaviour and effects on its performance in facilitating the optimization process. Measurements of the fabricated antenna on a low-cost FR4 substrate validate its operation centred at 0.845 (from 0.77 to 0.92 GHz), 1.745 (from 1.59 to 1.9 GHz), 2.655 (2.59 to 2.72 GHz) and 3.49 GHz (from 3.28 to 3.7 GHz). Meanwhile, simulated and measured radiation patterns of the proposed antenna in all bands agree well and are omnidirectional, making is suitable for application in mobile terminals.

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High‐Speed Packet Access Evolution (HSPA+) in 3GPP Release 7

Cited by 23 publications

References 0 publications

SymCo: Symbiotic Coexistence of Single-hop and Multi-hop Transmissions in Next-generation Wireless Mesh Networks

SymCo: Symbiotic Coexistence of Single-hop and Multi-hop Transmissions in Next-generation Wireless Mesh Networks

Unified Radio Access Network operation for Multi-Radio Access Technology cellular systems

A Quad-Band CPW Fed Slot Antenna Array for Lte and Wimax Applications

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