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Current and future applications impose high demands on software-defined radio (SDR) platforms in terms of latency, reliability, and flexibility. This paper presents a heterogeneous SDR MPSoC with a hexagonal network-on-chip to address these issues. It features four data processing modules and a baseband processing engine for iterative multiple-input multiple-output (MIMO) receiving. Integrated memory...
Modern mobile communication systems face conflicting design constraints. On the one hand, the expanding variety of transmission modes calls for highly flexible solutions supporting the ever-growing number and diversity of application requirements. On the other hand, stringent power restrictions (e.g., at femto base stations and terminals) must be considered, while satisfying the demanding performance...
In this paper, a two-stage detector is proposed for signals transmitted using multiple antenna configurations over frequency-selective channels. For the first stage, a frequency domain equalizer applying the minimum mean-squared error criterion is used to mitigate the intersymbol interference introduced by the channel's non-flat frequency response. Following, the output of this frequency domain equalizer,...
In current and future wireless standards, such as WiMAX, 3GPP-LTE or LTE-Advanced, receiver terminals have to support numerous operating modes for each protocol [1], as well as sophisticated transmission techniques, especially enhanced MIMO detection and iterative forward error correction (FEC). MIMO detection and FEC belong to the most computationally complex parts of the receiver-side baseband signal...
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