An Efficient Subcarrier Allocation Method for AeroMACS-Based Communication Systems

Bartoli, Giulio; Fantacci, R.; Marabissi, Dania; Micciullo, Luigia; Fossi, M.

doi:10.1109/taes.2013.6494381

Cited by 8 publications

(5 citation statements)

References 15 publications

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“…involving only two complex multiplications and two complex additions, the summation in the right-hand side of ( 14) does not lend itself to any efficient recursive implementation and needs N complex multiplications plus N complex additions for each value of d. Due to its remarkable advantage in terms of processing load, in the sequel we adopt the conventional metric M(d) expressed in (11) and declare a frame detection whenever M(d) exceeds a suitable threshold λ 0 . More precisely, assume that M(d 0 − 1) < λ 0 and M(d 0 ) > λ 0 .…”

Section: A Detection Of the Training Blockmentioning

confidence: 99%

“…The adoption of a multicarrier technology provides the system with high spectral efficiency, increased robustness against multipath distortions, and a remarkable flexibility in assigning system resources. It was recently shown that further physical layer (PHY) advancements can be achieved by introducing packet level coding [7], multiple antenna techniques [8], different cooperative communication schemes [9,10], and efficient subcarrier allocation methods [11]. The basic functionality of AeroMACS is the support of surface airport communications with vehicle speeds up to 92 km/h (50 kn).…”

Section: Introductionmentioning

confidence: 99%

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AeroMACS evolution - analysis during landing, takeoff, and approach phases

Pulini

Plass

Taponecco

et al. 2014

IEEE Trans. Aerosp. Electron. Syst.

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The Aeronautical Mobile Airport Communications System (AeroMACS) has been developed for future high-rate, secure, and safety enhancing airport communications in the C-band. Although initially designed for ground applications, the relatively large radio coverage area of AeroMACS suggests its potential extension to new operative scenarios wherein a data link is established between the control tower and the aircraft even when the latter is not in contact with the airport surface. An examination is needed for these new applications concerning channel properties, synchronization aspects, and general performance behaviors. In this paper, the possibility of using AeroMACS during the approach, landing, and takeoff phases of an aircraft flight is investigated. After deriving the channel parameters for the new application scenarios, the synchronization and channel estimation algorithms are presented and the overall error rate performance is assessed by means of computer simulations. Our results indicate that AeroMACS is able to cope with

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Section: A Detection Of the Training Blockmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

AeroMACS evolution - analysis during landing, takeoff, and approach phases

Pulini

Plass

Taponecco

et al. 2014

IEEE Trans. Aerosp. Electron. Syst.

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“…Hence, the possible levels of the received signal depend on the current channels state H i [k] , with i = 1, 2 and are different for each subcarrier (i.e, k = 1, · · · , K) [24].…”

Section: B Df-plnc In Awgn Channelmentioning

confidence: 99%

“…However, at the R side, only the subcarriers which are active for both terminals may have P e different from 0.5, thus we consider only these as "active". Hence, the number of these subcarriers is (24) that results equal to N JSS λ given by (23). In order to express the overall P e , we have to consider that at the R side the subcarriers suppressed by at least one terminal have 50% of decoding error probability, while the P e of the subcarriers active for both terminals is equal to P MA,1 e , given by (32) in the Appendix.…”

Section: Blind Subcarriers Suppressionmentioning

confidence: 99%

Subcarriers Suppression Methods for OFDM Systems with Decode-and-Forward Network Coding

Bartoli

Fantacci

Marabissi

et al. 2013

IEEE Trans. Wireless Commun.

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This paper deals with the performance evaluation of Decode and Forward Physical Layer Network Coding schemes under multipath fading channel propagation conditions. Physical Layer Network Coding in Two Way Relay Networks ideally allows to drastically increase the network throughput. However, under the assumption of actual channel propagation conditions, the performance quickly degrades due to high decoding error probability. With the aim of counteracting this drawback, the paper proposes a suitable approach for Orthogonal Frequency Division Multiplexing systems based on a signal pre-equalization technique. Furthermore, in order to lower the decoding error probability, three subcarriers suppression methods are introduced. These methods differ from each other for the performance achieved and the required amount of signaling that nodes have to exchange. An important result obtained here is that the combined use of channel inversion and subcarriers suppression allows to enhance the system reliability with a slight decrease of the throughput.Index Terms-Decode and forward, channel inversion, OFDM, physical layer network coding, subcarriers suppression, two way relay network.

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“…LTE key technologies are OFDM (Orthogonal Frequency Division Multiplexing) and MIMO (Multiple Input, Multiple Output). OFDM is a multicarrier technique that permits to face with severe multipath fading and allows an efficient use of the spectrum thanks to suitable resource allocation schemes [2], [3]. In addition MIMO permits to exploit spatial dimension to improve the system performance.…”

Section: Introductionmentioning

confidence: 99%

LTE-A femto-cell interference mitigation with MuSiC DOA estimation and null steering in an actual indoor environment

Bartoli

Fantacci

Marabissi

et al. 2013

2013 IEEE International Conference on Communications (ICC)

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This paper deals with a cognitive approach used to reduce the co-channel interference arising from the coexistence of an LTE macrocell and an LTE femtocell sharing the same frequency band. Multiple-antennas technology is considered to exploit the angle dimension as a new spectrum opportunity: femtocell acts as a secondary system and inserts nulls in the directions of the UE connected to the macrocell thus protecting the downlink transmission of the primary base station. MuSiC algorithm is used to detect the DOA of the UE signal replicas in an indoor environment assuming a variable number of multipath components characterized by a very large angle spread. The proposed scheme permits to increase the signal to interference ratio at the UE side thus reducing the achieved error rate on the downlink connection even when the number of resolvable paths is higher than the number of antennas. Finally the UE mobility is considered to take into account the effect of variable DOAs.

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An Efficient Subcarrier Allocation Method for AeroMACS-Based Communication Systems

Cited by 8 publications

References 15 publications

AeroMACS evolution - analysis during landing, takeoff, and approach phases

AeroMACS evolution - analysis during landing, takeoff, and approach phases

Subcarriers Suppression Methods for OFDM Systems with Decode-and-Forward Network Coding

LTE-A femto-cell interference mitigation with MuSiC DOA estimation and null steering in an actual indoor environment

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