This paper investigates the fundamental data detection problem with burst interference in massive multiple-input multiple-output orthogonal frequency division multiplexing(MIMO-OFDM) systems. In particular, burst inte...This paper investigates the fundamental data detection problem with burst interference in massive multiple-input multiple-output orthogonal frequency division multiplexing(MIMO-OFDM) systems. In particular, burst interference may occur only on data symbols but not on pilot symbols, which means that interference information cannot be premeasured. To cancel the burst interference, we first revisit the uplink multi-user system and develop a matrixform system model, where the covariance pattern and the low-rank property of the interference matrix is discussed. Then, we propose a turbo message passing based burst interference cancellation(TMP-BIC) algorithm to solve the data detection problem, where the constellation information of target data is fully exploited to refine its estimate. Furthermore, in the TMP-BIC algorithm, we design one module to cope with the interference matrix by exploiting its lowrank property. Numerical results demonstrate that the proposed algorithm can effectively mitigate the adverse effects of burst interference and approach the interference-free bound.展开更多
RTCMSC-104委员会制定的差分数据通讯标准是进行多系统数据融合、提供差分数据服务、实现RTK厘米级定位的关键和基础。针对最新的差分电文格式RTCM3.2版本的多信号信息组(Multiple Signal Message,MSM)实时解码问题,按照卫星信号标志量...RTCMSC-104委员会制定的差分数据通讯标准是进行多系统数据融合、提供差分数据服务、实现RTK厘米级定位的关键和基础。针对最新的差分电文格式RTCM3.2版本的多信号信息组(Multiple Signal Message,MSM)实时解码问题,按照卫星信号标志量设计思想及数据分割原理,以.net基于面向对象的程序设计思路为基础,提出RTCM3.2版本MSM类型电文的解码思路、流程及实现方法,实现电文各字段的实时、完整提取。通过实测实验数据进行解码分析,证明该方法的正确性和可靠性。展开更多
基金supported by the National Key Laboratory of Wireless Communications Foundation,China (IFN20230204)。
文摘This paper investigates the fundamental data detection problem with burst interference in massive multiple-input multiple-output orthogonal frequency division multiplexing(MIMO-OFDM) systems. In particular, burst interference may occur only on data symbols but not on pilot symbols, which means that interference information cannot be premeasured. To cancel the burst interference, we first revisit the uplink multi-user system and develop a matrixform system model, where the covariance pattern and the low-rank property of the interference matrix is discussed. Then, we propose a turbo message passing based burst interference cancellation(TMP-BIC) algorithm to solve the data detection problem, where the constellation information of target data is fully exploited to refine its estimate. Furthermore, in the TMP-BIC algorithm, we design one module to cope with the interference matrix by exploiting its lowrank property. Numerical results demonstrate that the proposed algorithm can effectively mitigate the adverse effects of burst interference and approach the interference-free bound.
文摘RTCMSC-104委员会制定的差分数据通讯标准是进行多系统数据融合、提供差分数据服务、实现RTK厘米级定位的关键和基础。针对最新的差分电文格式RTCM3.2版本的多信号信息组(Multiple Signal Message,MSM)实时解码问题,按照卫星信号标志量设计思想及数据分割原理,以.net基于面向对象的程序设计思路为基础,提出RTCM3.2版本MSM类型电文的解码思路、流程及实现方法,实现电文各字段的实时、完整提取。通过实测实验数据进行解码分析,证明该方法的正确性和可靠性。
