Design and Performance of Dual-Hop MIMO UWB Transmissions

Maichalernnukul, Kiattisak; Zheng, Feng; Kaiser, Thomas

doi:10.1109/tvt.2010.2048347

Cited by 15 publications

(13 citation statements)

References 46 publications

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“…One-way relaying with pre/post-rake combining at the relay was considered in [26] for UWB signaling with guard intervals. In [27] one-way decouple and forward relaying with rake receivers at the destination node was considered. All of the mentioned methods cannot handle multi-way relaying links.…”

Section: A Related Work and Contributionsmentioning

confidence: 99%

Multiuser Two-Way Relaying Schemes for UWB Communication

Ahmadian

Lampe

Mietzner

2014

IEEE Trans. Wireless Commun.

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In this paper we propose multiuser two-way relaying strategies for pairwise internode communication in a network consisting of ultra-wideband (UWB) transceivers with limited signal processing capability, via a central relay unit. We propose reducing the complexity associated with the design of filters at the relay by using pre/post-rake processing in conjunction with optimized filtering at the relay. Two relaying strategies relevant to multipath fading channels, namely detect-and-forward and filterand-forward with self-interference cancelation, are considered. For both methods, we start with a convex optimization problem formulation with closed-form solutions, then extend the design to the more general case which is a non-convex problem and use an alternating optimization algorithm to solve the design problems. Furthermore, for both design schemes widely linear design formulations are devised. The presented numerical results demonstrate the capability of the proposed design schemes in establishing a reliable communication link between nodes with limited signal processing power and in absence of a direct link.Index Terms-Detect-and-forward relaying, filter-and-forward relaying, intersymbol interference, multi-way relaying, multiuser interference, multiuser two-way relaying, pre-rake filtering, selfinterference cancelation, ultra-wideband (UWB), UWB relay communication.

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Section: A Related Work and Contributionsmentioning

confidence: 99%

Multiuser Two-Way Relaying Schemes for UWB Communication

Ahmadian

Lampe

Mietzner

2014

IEEE Trans. Wireless Commun.

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“…Simulations also carried out and compared for direct link(Non relay). The coverage extension of UWB communication [8] and narrow band communication [9] using dual-hop and multi hop modeled for high data rates. [8]considered dual-hop UWBMIMO relay system and performance was analyzed over UW Bmulti path fading.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The coverage extension of UWB communication [8] and narrow band communication [9] using dual-hop and multi hop modeled for high data rates. [8]considered dual-hop UWBMIMO relay system and performance was analyzed over UW Bmulti path fading. Different relays were proposed at transmitter and receiver with the knowledge of channel state information (CSI).…”

Section: Literature Reviewmentioning

confidence: 99%

Multi-hope relay based high capacity energy efficient model for ultra wideband communication system

Rajanna¹,

Chandrashrkar²,

KishanRao³

2017

IJET

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Demanding large bandwidth and signal robustness over a short distance, ultra wideband communication systems plays an important role. UWB systems exhibits very low spectral density, implies that the interference to narrowband systems is very small. The relay based communication has the advantages of coverage extension, range extension, increase data rates and green communication. The relay based communication with UWB frequency is used to increase the coverage area by using of relays and increasing the data rates by increasing SNR of the links using multi-hop communication. In this paper, capacity and bit error rate of relay based UWB system for indoor and outdoor channel models are analyzed. key Terms-UWB, green communication, multi-hop, capacity, bit error rate, spectral density.

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“…The issues of power allocation and path selection were tackled in [17] in the context of DF noncoherent UWB systems. In [18], an AF cooperation strategy that is based on the orthogonal STBCs was proposed and analyzed in terms of outage probability in the context of dual-hop multi-antenna IR-UWB transmissions. IR-UWB AF cooperation was also studied in [19] where a multiple differential encoding scheme was proposed and analyzed.…”

Section: Introductionmentioning

confidence: 99%

Distributed Space-Time Codes for Full-Duplex IR-UWB Amplify-and-Forward Cooperation

Abou-Rjeily

2015

IEEE Trans. Wireless Commun.

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In this paper, we consider the problem of full-duplex (FD) relaying in the context of impulse-radio ultra-wideband (IR-UWB) communications. In particular, we propose two novel distributed space-time block codes (STBCs) suitable for the amplify-and-forward (AF) cooperation protocol with one and two relays. Despite the fact that FD relaying results in significant levels of interference between the transmit and receive antennas of each relay, it introduces new concepts to the problem of distributed STBC design. Compared to half-duplex (HD) STBC, FD-STBC is subject to an additional constraint that imposes the structure of the codewords while it offers the predominant advantage that resides in the possibility of including a smaller number of information symbols per codeword for achieving a full rate. We take advantage of this potential for constructing fully-diverse, full-rate and totally-real IR-UWB FD-STBCs that outperform the existing HD-STBCs for all practical levels of the residual self loop interference. In fact, for the sake of transmitting at full rate, the best known distributed HD-STBCs for the non-orthogonal AF protocol require the joint encoding/decoding of 4N r symbols where N r is the number of relays. On the other hand, the proposed FD-STBCs require embedding only N r + 2 symbols per codeword for transmitting at full rate. Following from this fact, not only the decoding complexity is reduced, but also the coding gains are improved resulting in enhanced performance levels.

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Design and Performance of Dual-Hop MIMO UWB Transmissions

Cited by 15 publications

References 46 publications

Multiuser Two-Way Relaying Schemes for UWB Communication

Multiuser Two-Way Relaying Schemes for UWB Communication

Multi-hope relay based high capacity energy efficient model for ultra wideband communication system

Distributed Space-Time Codes for Full-Duplex IR-UWB Amplify-and-Forward Cooperation

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