Sparsity-Aware Successive Interference Cancellation with Practical Constraints
نویسندگان
چکیده
This paper investigates new detection methods for low data-rate Machine Type Communication. Special attention is paid to uplink communication in networks where nodes are only active occasionally, which requires a joint activity and data detection at the receiver. This paper shows that a modified version of Successive Interference Cancellation is a viable approach for the detection of these low data-rate multi-user signals. The analysis is in the context of a hardware implementation, which we address particularly as we investigate the algorithmic complexity of the introduced algorithms.
منابع مشابه
Cancellation Error Statistics in a CDMA System Using Successive Interference Cancellation
Successive interference cancellation (SIC) is a promising practical scheme for increasing the capacity of CDMA systems. The interference cancellation is never perfect, and the residual cancellation errors propagate because of the successive nature of the decoding. In fact, these residual errors are the principle capacity-limiting issue in SIC systems. Until now, the statistics of these errors h...
متن کاملA Practical Tree Algorithm with Successive Interference Cancellation for Delay Reduction in IEEE 802.16 Networks
This paper thoroughly studies a modification of tree algorithm with successive interference cancellation. In particular, we focus on the algorithm throughput and account for a single signal memory location, as well as cancellation errors of three types. The resulting scheme is robust to imperfect interference cancellation and is tailored to the uplink bandwidth request collision resolution in a...
متن کاملOptimized power allocation for iterative multiuser detection for a SC-CDMA uplink
This paper deals with optimization of the received power profile for iterative parallel and successive interference cancellation (PIC/SIC) in coded CDMA systems. For practical implementation additional constraints should be applied. This paper focuses on the maximum tolerable bit error rate. It will be shown that optimized power profile can considerably gain the overall system performance. Due ...
متن کامل1 Convergence of Linear Successive Interference Cancellation in Cdma
In this paper we consider a matrix-algebraic approach to linear successive interference cancellation (SIC). It has been shown that both singleand multi-stage linear SIC schemes correspond to a one-shot linear matrix ltering. Eigenvalue conditions on the resulting linear lter for convergence of the multistage scheme are considered and the concept of -convergence is introduced for determining the...
متن کاملCapacity regions for wireless ad hoc networks
We define and study capacity regions for wireless ad hoc networks with an arbitrary number of nodes and topology. These regions describe the set of achievable rate combinations between all source-destination pairs in the network under various transmission strategies, such as variable-rate transmission, single hop or multihop routing, power control and successive interference cancellation. Multi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2013