1 Gbit/s MIMO-OFDM transmission experiments

Jungnickel, Volker; Forck, A.; Haustein, Thomas; Schiffermuller, S.; Helmolt, C. von; Luhn, F.; Pollock, Michael A.; Juchems, Christoph; Lampe, M.; Eichinger, S.; Zirwas, Wolfgang; Schulz, E.

doi:10.1109/vetecf.2005.1558047

Cited by 28 publications

(17 citation statements)

References 4 publications

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“…REAL-TIME IMPLEMENTATION PHY and MAC for BS and UE have been implemented on a standard signal processing platform previously used for 1 Gbit/s MIMO-OFDM transmission experiments [1]. The new MAC layer connects via 1 Gbit/s Ethernet to the IP layer.…”

Section: B Multi-user Mimo Macmentioning

confidence: 99%

“…Moreover, an implementation of intelligent scheduling algorithms is needed in combination with a highly flexible mapping of data symbols onto granted resources at the MAC layer. Some of these new components have been previously tested, see MIMO-OFDM [1] or multi-user scheduling on a single carrier in [2]. However, the complete set of algorithms has never before been integrated in real-time and tested over the air in a realistic cellular scenario.…”

Section: Introductionmentioning

confidence: 99%

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Realtime Multi-User Multi-Antenna Downlink Measurements

Wirth

Jungnickel

Forck

et al. 2008

2008 IEEE Wireless Communications and Networking Conference

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Abstract-In this paper, we present real-time broadband multi-user multi-antenna measurements in typical indoor and outdoor scenarios. For the first time, essential frequency-selective functions of a new medium access control (MAC) layer, namely fair resource assignment to multiple users, spatial mode selection and adaptive modulation, have been implemented in real-time on standard digital signal processing hardware. The new MAC layer is steered over wireless feedback and control channels in a closed loop manner. Our implementation uses parameters close to the forthcoming long-term evolution (LTE) of the 3G air interface, thus illustrating the feasibility of the new functions in next-generation cellular radio systems. The paper describes our real-time implementation and reports several test results. Benefits of the frequency-selective multi-user MIMO MAC are validated in realistic mobile propagation environments.

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Section: B Multi-user Mimo Macmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Realtime Multi-User Multi-Antenna Downlink Measurements

Wirth

Jungnickel

Forck

et al. 2008

2008 IEEE Wireless Communications and Networking Conference

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“…OFDM is based on FDM, which is a technology that uses multiple frequencies to simultaneously transmit multiple signals. MIMO-OFDM is a promising technique that embraces advantages of both MIMO system and OFDM, i.e., immunity to delay spread as well as huge transmission capacity (Jungnickel et al, 2005). Different types of Space time codes were applied to MIMO-OFDM system to increase the capacity.…”

Section: Introductionmentioning

confidence: 99%

Vlsi Implementation of Channel Estimation for Mimo-Ofdm Transceiver

Sekar¹

2013

American Journal of Applied Sciences

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In this study the VLSI architecture for MIMO-OFDM transceiver and the algorithm for the implementation of MMSE detection in MIMO-OFDM system is proposed. The implemented MIMO-OFDM system is capable of transmitting data at high throughput in physical layer and provides optimized hardware resources while achieving the same data rate. The proposed architecture has low latency, high throughput and efficient resource utilization. The result obtained is compared with the MATLAB results for verification. The main aim is to reduce the hardware complexity of the channel estimation.

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“…Even recent studies [8], [9] deal with only a FPGA implementation in a baseband MIMO-OFDM transceiver. Jungnickel et al has reported the total development of a MIMO-OFDM experimental platform [10]. We compare Jungnickel's experimental platform with ours, which is summarized in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Development and Outdoor Evaluation of an Experimental Platform in an 80-MHz Bandwidth 2×2 MIMO-OFDM System in 5.2-GHz Band

Kano

Yoshizawa

Gunji

et al. 2011

IEICE Trans. Inf. & Syst.

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SUMMARYThe IEEE802.11ac task group has announced the use of a wider channel that extends the channel bandwidth to more than 80 MHz. We present an experimental platform consisting of a baseband and a RF unit in a 2×2 MIMO-OFDM system for the wider channel and report its system performance results from a field experiment. The MIMO-OFDM transceiver in the baseband unit has been designed to detect real-time MIMO and provides a maximum data rate of 600 Mbps. OFDM tends to cause high peak PAPR for wider channels and distorts the power amplifier performance in the RF unit. We have improved the non-linear distortion by optimizing the OFDM preamble and evaluated its performance by conducting a simulation integrated with baseband processing and a RF. In the field experiment, our platform tested the communication performance in a farm and a passage environment. key words: IEEE802.11ac, wideband MIMO-OFDM, FPGA, field experiment

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1 Gbit/s MIMO-OFDM transmission experiments

Cited by 28 publications

References 4 publications

Realtime Multi-User Multi-Antenna Downlink Measurements

Realtime Multi-User Multi-Antenna Downlink Measurements

Vlsi Implementation of Channel Estimation for Mimo-Ofdm Transceiver

Development and Outdoor Evaluation of an Experimental Platform in an 80-MHz Bandwidth 2×2 MIMO-OFDM System in 5.2-GHz Band

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1 Gbit/s MIMO-OFDM transmission experiments

Cited by 28 publications

References 4 publications

Realtime Multi-User Multi-Antenna Downlink Measurements

Realtime Multi-User Multi-Antenna Downlink Measurements

Vlsi Implementation of Channel Estimation for Mimo-Ofdm Transceiver

Development and Outdoor Evaluation of an Experimental Platform in an 80-MHz Bandwidth 2&times;2 MIMO-OFDM System in 5.2-GHz Band

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Product

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Development and Outdoor Evaluation of an Experimental Platform in an 80-MHz Bandwidth 2×2 MIMO-OFDM System in 5.2-GHz Band