A moving extended cell concept for seamless communication in 60 GHz radio-over-fiber networks

Pleros, N.; Tsagkaris, Kostas; Tselikas, Nikolaos D.

doi:10.1109/lcomm.2008.080843

Cited by 21 publications

(14 citation statements)

References 6 publications

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“…In which, most of them have dealt with the issues in physical layer. A few of them on handoffs in 60 GHz band have been reported [10][11][12][13][14][15]. In [10], a virtual cell (VC) using Orthogonal Frequency-Division Multiplexing (OFDM) for the 60 GHz network is introduced.…”

Section: Related Workmentioning

confidence: 99%

Resource management in indoor hybrid Fi‐Wi network

Bien

Prasad

Chandra

et al. 2014

Trans Emerging Tel Tech

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In‐home networking is becoming a reality. New multimedia applications envisaged for indoor networks require data rate of up to several gigabits per second. In order to meet such a demand for high data rate unlicensed spectrum of 5GHz around 60GHz band is being considered for a potential choice. This pico cellular infrastructure also helps in reducing the interference; at the same time, it is a cause for high deployment cost. Radio‐over‐fiber infrastructure is an obvious choice to feed this last mile high data rate links. The combination of radio‐over‐fiber and 60GHz wireless links, which is known as hybrid Fi‐Wi, is a promising solution to offer high data rate indoor networking. Because of smaller cell size, handoffs between these small cells occur frequently in such a hybrid network. Because of smaller overlapping area between neighbouring cells, guaranteeing quality of service in this network is highly difficult compared with the traditional wireless cellular networks. Thus, resource management in such network is a challenging task. In indoor environments, techniques such as hidden Markov models can be employed to predict movements with high degree of accuracy. In this article, we propose a handoff scheme that utilises movement prediction to reserve bandwidth in only potential target cells before each handoff is initiated. The simulation results show that the proposed scheme performs better than the two other schemes from the literature in terms of the call dropping probability and the call blocking probability. Copyright © 2014 John Wiley & Sons, Ltd.

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Section: Related Workmentioning

confidence: 99%

Resource management in indoor hybrid Fi‐Wi network

Bien

Prasad

Chandra

et al. 2014

Trans Emerging Tel Tech

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“…To this end, the SSPs for all states can be expressed as (7) for . For , the respective expression describing the transition from the WAIT state to the is given by (8) By utilizing the fact that each of the frames, independently of its type, is of equal duration we derive that (9) Using (1), (7), and (8), is found to be (10) By utilizing (2)- (4), (8), and (10), (7) can be recursively solved yielding all required values, which can be then used in (5) to enable the calculation of . Finally, in order to calculate , we also need to specify the and values.…”

Section: Throughput Analysismentioning

confidence: 99%

“…Within this frame, the research emphasis has been on physical layer technologies and architectures for high-capacity RoF network deployments [3]- [6], whereas only a limited number of efforts have attempted the functional convergence of the optical and wireless network parts through the realization of dynamic capacity allocation and user mobility concepts [7]- [10]. On the same line, only a small portion of the research carried out so far has been dedicated to medium access control (MAC) layer issues, the main interest being in adapting existing MAC protocol standards, like the 802.11g, to the higher delay metrics of long-distance RoF implementations [11]- [16].…”

mentioning

confidence: 99%

Saturation Throughput Performance Analysis of a Medium Transparent MAC Protocol for 60 GHz Radio-Over-Fiber Networks

Kalfas

Pleros

Tsagkaris

et al. 2011

J. Lightwave Technol.

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Abstract-We demonstrate an analytical model for calculating the saturation throughput performance of a medium transparent medium access control (MAC) protocol in 60 GHz radio-over-fiber (RoF) networks. The proposed model incorporates effectively the medium transparent MAC mechanism, assuming a finite number of terminals and ideal channel conditions. It takes into account contention both at the optical and wireless layer, ensuring seamless and dynamic capacity allocation over both transmission media. This model enables extensive saturation throughput performance analysis for the medium transparent MAC and has been applied to 60 GHz RoF network scenarios considering variable numbers of available optical wavelengths, wireless nodes and serving antenna elements and for two different data rate values, namely 155 Mbps and 1 Gbps. Comparison between the model-based throughput results and respective simulation-based outcomes reveals that our model is extremely accurate in predicting the system throughput. Moreover, it confirms that the proposed medium transparent MAC protocol can effectively operate in high-speed 60 GHz RoF LAN environments.Index Terms-Medium access control (MAC) protocol, medium transparent MAC (MT-MAC), performance analysis, radio over fiber (RoF), 60 GHz local access network (LAN), 60 GHz wireless.

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“…The MEC concept has been formulated in [3] and is schematically represented in Fig.1. It comprises a capacity reallocation mechanism for reconfiguring the ECs so as to form user-centric MEC structures that follow the MU's mobility pattern.…”

Section: Review Of Mec Conceptmentioning

confidence: 99%

“…As a result, the MU is continuously surrounded by cells that transmit the same data content, offering in this way seamless communication conditions for all possible subsequent movements. The MEC concept has been validated through an extensive set of simulations [3]. Results from that performance evaluation have revealed zero packet loss and call dropping probabilities for MU velocities up to 40 m/sec irrespective of the overlapping area length (OAL) between neighboring cells.…”

Section: Review Of Mec Conceptmentioning

confidence: 99%